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Finding the Fourth Proportional to 1,401.01, 2,101.52 and 476.58

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Solution

The fourth proportional to 1,401.01, 2,101.52 and 476.58 is: 714.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,401.01 : 2,101.52 = 476.58 : x
  2. Step 2: Convert to fraction form
    1,401.01/2,101.52 = 476.58/x
  3. Step 3: Cross multiply
    1,401.01x = 2,101.52 × 476.58
  4. Step 4: Simplify right side
    1,401.01x = 1,001,543.59
  5. Step 5: Solve for x
    x = 1,001,543.59/1,401.01
  6. Step 6: Final answer
    x = 714.87

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Double scale
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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.