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Finding the Fourth Proportional to 1,437.71, 2,156.90 and 463.77

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Solution

The fourth proportional to 1,437.71, 2,156.90 and 463.77 is: 695.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,437.71 : 2,156.90 = 463.77 : x
  2. Step 2: Convert to fraction form
    1,437.71/2,156.90 = 463.77/x
  3. Step 3: Cross multiply
    1,437.71x = 2,156.90 × 463.77
  4. Step 4: Simplify right side
    1,437.71x = 1,000,303.19
  5. Step 5: Solve for x
    x = 1,000,303.19/1,437.71
  6. Step 6: Final answer
    x = 695.76

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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.