Home / 5,423.60-8,135.40-2,507.60

Finding the Fourth Proportional to 5,423.60, 8,135.40 and 2,507.60

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Solution

The fourth proportional to 5,423.60, 8,135.40 and 2,507.60 is: 3,761.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,423.60 : 8,135.40 = 2,507.60 : x
  2. Step 2: Convert to fraction form
    5,423.60/8,135.40 = 2,507.60/x
  3. Step 3: Cross multiply
    5,423.60x = 8,135.40 × 2,507.60
  4. Step 4: Simplify right side
    5,423.60x = 20,400,329.04
  5. Step 5: Solve for x
    x = 20,400,329.04/5,423.60
  6. Step 6: Final answer
    x = 3,761.40

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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.