Home / 1,737.60-2,399.36-1,507.20

Finding the Fourth Proportional to 1,737.60, 2,399.36 and 1,507.20

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Solution

The fourth proportional to 1,737.60, 2,399.36 and 1,507.20 is: 2,081.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,737.60 : 2,399.36 = 1,507.20 : x
  2. Step 2: Convert to fraction form
    1,737.60/2,399.36 = 1,507.20/x
  3. Step 3: Cross multiply
    1,737.60x = 2,399.36 × 1,507.20
  4. Step 4: Simplify right side
    1,737.60x = 3,616,315.39
  5. Step 5: Solve for x
    x = 3,616,315.39/1,737.60
  6. Step 6: Final answer
    x = 2,081.21

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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.