Home / 3,725.47-5,590.43-1,385.08

Finding the Fourth Proportional to 3,725.47, 5,590.43 and 1,385.08

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Solution

The fourth proportional to 3,725.47, 5,590.43 and 1,385.08 is: 2,078.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,725.47 : 5,590.43 = 1,385.08 : x
  2. Step 2: Convert to fraction form
    3,725.47/5,590.43 = 1,385.08/x
  3. Step 3: Cross multiply
    3,725.47x = 5,590.43 × 1,385.08
  4. Step 4: Simplify right side
    3,725.47x = 7,743,192.78
  5. Step 5: Solve for x
    x = 7,743,192.78/3,725.47
  6. Step 6: Final answer
    x = 2,078.45

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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.