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Finding the Fourth Proportional to 1,842.71, 2,543.03 and 1,056.76

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Solution

The fourth proportional to 1,842.71, 2,543.03 and 1,056.76 is: 1,458.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,842.71 : 2,543.03 = 1,056.76 : x
  2. Step 2: Convert to fraction form
    1,842.71/2,543.03 = 1,056.76/x
  3. Step 3: Cross multiply
    1,842.71x = 2,543.03 × 1,056.76
  4. Step 4: Simplify right side
    1,842.71x = 2,687,372.38
  5. Step 5: Solve for x
    x = 2,687,372.38/1,842.71
  6. Step 6: Final answer
    x = 1,458.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.