Home / 1,207.83-1,654.32-1,136.91

Finding the Fourth Proportional to 1,207.83, 1,654.32 and 1,136.91

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Solution

The fourth proportional to 1,207.83, 1,654.32 and 1,136.91 is: 1,557.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207.83 : 1,654.32 = 1,136.91 : x
  2. Step 2: Convert to fraction form
    1,207.83/1,654.32 = 1,136.91/x
  3. Step 3: Cross multiply
    1,207.83x = 1,654.32 × 1,136.91
  4. Step 4: Simplify right side
    1,207.83x = 1,880,809.53
  5. Step 5: Solve for x
    x = 1,880,809.53/1,207.83
  6. Step 6: Final answer
    x = 1,557.18

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.