Home / 3,712.15-5,590.06-2,679.40

Finding the Fourth Proportional to 3,712.15, 5,590.06 and 2,679.40

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Solution

The fourth proportional to 3,712.15, 5,590.06 and 2,679.40 is: 4,034.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,712.15 : 5,590.06 = 2,679.40 : x
  2. Step 2: Convert to fraction form
    3,712.15/5,590.06 = 2,679.40/x
  3. Step 3: Cross multiply
    3,712.15x = 5,590.06 × 2,679.40
  4. Step 4: Simplify right side
    3,712.15x = 14,978,006.76
  5. Step 5: Solve for x
    x = 14,978,006.76/3,712.15
  6. Step 6: Final answer
    x = 4,034.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.