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Finding the Fourth Proportional to 3,159.81, 4,737.29 and 1,926.59

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Solution

The fourth proportional to 3,159.81, 4,737.29 and 1,926.59 is: 2,888.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,159.81 : 4,737.29 = 1,926.59 : x
  2. Step 2: Convert to fraction form
    3,159.81/4,737.29 = 1,926.59/x
  3. Step 3: Cross multiply
    3,159.81x = 4,737.29 × 1,926.59
  4. Step 4: Simplify right side
    3,159.81x = 9,126,782.22
  5. Step 5: Solve for x
    x = 9,126,782.22/3,159.81
  6. Step 6: Final answer
    x = 2,888.40

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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.