Home / 5,140.22-7,712.06-1,630.80

Finding the Fourth Proportional to 5,140.22, 7,712.06 and 1,630.80

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Solution

The fourth proportional to 5,140.22, 7,712.06 and 1,630.80 is: 2,446.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.22 : 7,712.06 = 1,630.80 : x
  2. Step 2: Convert to fraction form
    5,140.22/7,712.06 = 1,630.80/x
  3. Step 3: Cross multiply
    5,140.22x = 7,712.06 × 1,630.80
  4. Step 4: Simplify right side
    5,140.22x = 12,576,827.45
  5. Step 5: Solve for x
    x = 12,576,827.45/5,140.22
  6. Step 6: Final answer
    x = 2,446.75

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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.