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Finding the Fourth Proportional to 2,089.04, 3,133.12 and 627.76

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Solution

The fourth proportional to 2,089.04, 3,133.12 and 627.76 is: 941.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,089.04 : 3,133.12 = 627.76 : x
  2. Step 2: Convert to fraction form
    2,089.04/3,133.12 = 627.76/x
  3. Step 3: Cross multiply
    2,089.04x = 3,133.12 × 627.76
  4. Step 4: Simplify right side
    2,089.04x = 1,966,847.41
  5. Step 5: Solve for x
    x = 1,966,847.41/2,089.04
  6. Step 6: Final answer
    x = 941.51

Related Problems

Find fourth proportional to 1,044.52, 1,566.56 and 313.88
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.