Home / 5,727.26-8,590.90-3,128.78

Finding the Fourth Proportional to 5,727.26, 8,590.90 and 3,128.78

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Solution

The fourth proportional to 5,727.26, 8,590.90 and 3,128.78 is: 4,693.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,727.26 : 8,590.90 = 3,128.78 : x
  2. Step 2: Convert to fraction form
    5,727.26/8,590.90 = 3,128.78/x
  3. Step 3: Cross multiply
    5,727.26x = 8,590.90 × 3,128.78
  4. Step 4: Simplify right side
    5,727.26x = 26,879,036.10
  5. Step 5: Solve for x
    x = 26,879,036.10/5,727.26
  6. Step 6: Final answer
    x = 4,693.18

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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.