Home / 5,612.35-8,407.77-3,139.69

Finding the Fourth Proportional to 5,612.35, 8,407.77 and 3,139.69

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Solution

The fourth proportional to 5,612.35, 8,407.77 and 3,139.69 is: 4,703.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,612.35 : 8,407.77 = 3,139.69 : x
  2. Step 2: Convert to fraction form
    5,612.35/8,407.77 = 3,139.69/x
  3. Step 3: Cross multiply
    5,612.35x = 8,407.77 × 3,139.69
  4. Step 4: Simplify right side
    5,612.35x = 26,397,791.39
  5. Step 5: Solve for x
    x = 26,397,791.39/5,612.35
  6. Step 6: Final answer
    x = 4,703.52

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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.