Home / 3,730.38-5,590.78-1,540.65

Finding the Fourth Proportional to 3,730.38, 5,590.78 and 1,540.65

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Solution

The fourth proportional to 3,730.38, 5,590.78 and 1,540.65 is: 2,309.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,730.38 : 5,590.78 = 1,540.65 : x
  2. Step 2: Convert to fraction form
    3,730.38/5,590.78 = 1,540.65/x
  3. Step 3: Cross multiply
    3,730.38x = 5,590.78 × 1,540.65
  4. Step 4: Simplify right side
    3,730.38x = 8,613,435.21
  5. Step 5: Solve for x
    x = 8,613,435.21/3,730.38
  6. Step 6: Final answer
    x = 2,309.00

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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.