Home / 3,724.49-5,587.74-1,385.75

Finding the Fourth Proportional to 3,724.49, 5,587.74 and 1,385.75

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Solution

The fourth proportional to 3,724.49, 5,587.74 and 1,385.75 is: 2,078.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,724.49 : 5,587.74 = 1,385.75 : x
  2. Step 2: Convert to fraction form
    3,724.49/5,587.74 = 1,385.75/x
  3. Step 3: Cross multiply
    3,724.49x = 5,587.74 × 1,385.75
  4. Step 4: Simplify right side
    3,724.49x = 7,743,182.77
  5. Step 5: Solve for x
    x = 7,743,182.77/3,724.49
  6. Step 6: Final answer
    x = 2,078.99

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1.5x scale

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.