Home / 1,320.59-1,982.94-1,262.16

Finding the Fourth Proportional to 1,320.59, 1,982.94 and 1,262.16

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Solution

The fourth proportional to 1,320.59, 1,982.94 and 1,262.16 is: 1,895.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320.59 : 1,982.94 = 1,262.16 : x
  2. Step 2: Convert to fraction form
    1,320.59/1,982.94 = 1,262.16/x
  3. Step 3: Cross multiply
    1,320.59x = 1,982.94 × 1,262.16
  4. Step 4: Simplify right side
    1,320.59x = 2,502,781.24
  5. Step 5: Solve for x
    x = 2,502,781.24/1,320.59
  6. Step 6: Final answer
    x = 1,895.20

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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.