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Finding the Fourth Proportional to 1,330.93, 1,836.98 and 807.27

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Solution

The fourth proportional to 1,330.93, 1,836.98 and 807.27 is: 1,114.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330.93 : 1,836.98 = 807.27 : x
  2. Step 2: Convert to fraction form
    1,330.93/1,836.98 = 807.27/x
  3. Step 3: Cross multiply
    1,330.93x = 1,836.98 × 807.27
  4. Step 4: Simplify right side
    1,330.93x = 1,482,938.84
  5. Step 5: Solve for x
    x = 1,482,938.84/1,330.93
  6. Step 6: Final answer
    x = 1,114.21

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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.