Home / 3,031.40-4,534.95-2,739.80

Finding the Fourth Proportional to 3,031.40, 4,534.95 and 2,739.80

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Solution

The fourth proportional to 3,031.40, 4,534.95 and 2,739.80 is: 4,098.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,031.40 : 4,534.95 = 2,739.80 : x
  2. Step 2: Convert to fraction form
    3,031.40/4,534.95 = 2,739.80/x
  3. Step 3: Cross multiply
    3,031.40x = 4,534.95 × 2,739.80
  4. Step 4: Simplify right side
    3,031.40x = 12,424,856.01
  5. Step 5: Solve for x
    x = 12,424,856.01/3,031.40
  6. Step 6: Final answer
    x = 4,098.72

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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.