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Finding the Fourth Proportional to 1,437.37, 1,983.45 and 807.97

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Solution

The fourth proportional to 1,437.37, 1,983.45 and 807.97 is: 1,114.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,437.37 : 1,983.45 = 807.97 : x
  2. Step 2: Convert to fraction form
    1,437.37/1,983.45 = 807.97/x
  3. Step 3: Cross multiply
    1,437.37x = 1,983.45 × 807.97
  4. Step 4: Simplify right side
    1,437.37x = 1,602,568.10
  5. Step 5: Solve for x
    x = 1,602,568.10/1,437.37
  6. Step 6: Final answer
    x = 1,114.93

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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.