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Finding the Fourth Proportional to 1,809.71, 2,497.42 and 1,063.76

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Solution

The fourth proportional to 1,809.71, 2,497.42 and 1,063.76 is: 1,468.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,809.71 : 2,497.42 = 1,063.76 : x
  2. Step 2: Convert to fraction form
    1,809.71/2,497.42 = 1,063.76/x
  3. Step 3: Cross multiply
    1,809.71x = 2,497.42 × 1,063.76
  4. Step 4: Simplify right side
    1,809.71x = 2,656,655.50
  5. Step 5: Solve for x
    x = 2,656,655.50/1,809.71
  6. Step 6: Final answer
    x = 1,468.00

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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.