Home / 5,615.60-8,428.20-2,500.40

Finding the Fourth Proportional to 5,615.60, 8,428.20 and 2,500.40

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Solution

The fourth proportional to 5,615.60, 8,428.20 and 2,500.40 is: 3,752.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,615.60 : 8,428.20 = 2,500.40 : x
  2. Step 2: Convert to fraction form
    5,615.60/8,428.20 = 2,500.40/x
  3. Step 3: Cross multiply
    5,615.60x = 8,428.20 × 2,500.40
  4. Step 4: Simplify right side
    5,615.60x = 21,073,871.28
  5. Step 5: Solve for x
    x = 21,073,871.28/5,615.60
  6. Step 6: Final answer
    x = 3,752.74

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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.