Home / 3,140.60-4,710.11-1,292.23

Finding the Fourth Proportional to 3,140.60, 4,710.11 and 1,292.23

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Solution

The fourth proportional to 3,140.60, 4,710.11 and 1,292.23 is: 1,938.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.60 : 4,710.11 = 1,292.23 : x
  2. Step 2: Convert to fraction form
    3,140.60/4,710.11 = 1,292.23/x
  3. Step 3: Cross multiply
    3,140.60x = 4,710.11 × 1,292.23
  4. Step 4: Simplify right side
    3,140.60x = 6,086,545.45
  5. Step 5: Solve for x
    x = 6,086,545.45/3,140.60
  6. Step 6: Final answer
    x = 1,938.02

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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.