Home / 1,355.60-2,033.36-739.14

Finding the Fourth Proportional to 1,355.60, 2,033.36 and 739.14

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Solution

The fourth proportional to 1,355.60, 2,033.36 and 739.14 is: 1,108.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355.60 : 2,033.36 = 739.14 : x
  2. Step 2: Convert to fraction form
    1,355.60/2,033.36 = 739.14/x
  3. Step 3: Cross multiply
    1,355.60x = 2,033.36 × 739.14
  4. Step 4: Simplify right side
    1,355.60x = 1,502,937.71
  5. Step 5: Solve for x
    x = 1,502,937.71/1,355.60
  6. Step 6: Final answer
    x = 1,108.69

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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.