Home / 4,139.30-5,712.22-2,370.90

Finding the Fourth Proportional to 4,139.30, 5,712.22 and 2,370.90

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Solution

The fourth proportional to 4,139.30, 5,712.22 and 2,370.90 is: 3,271.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,139.30 : 5,712.22 = 2,370.90 : x
  2. Step 2: Convert to fraction form
    4,139.30/5,712.22 = 2,370.90/x
  3. Step 3: Cross multiply
    4,139.30x = 5,712.22 × 2,370.90
  4. Step 4: Simplify right side
    4,139.30x = 13,543,102.40
  5. Step 5: Solve for x
    x = 13,543,102.40/4,139.30
  6. Step 6: Final answer
    x = 3,271.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.