Home / 7,639.60-11,461.20-2,445.52

Finding the Fourth Proportional to 7,639.60, 11,461.20 and 2,445.52

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Solution

The fourth proportional to 7,639.60, 11,461.20 and 2,445.52 is: 3,668.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639.60 : 11,461.20 = 2,445.52 : x
  2. Step 2: Convert to fraction form
    7,639.60/11,461.20 = 2,445.52/x
  3. Step 3: Cross multiply
    7,639.60x = 11,461.20 × 2,445.52
  4. Step 4: Simplify right side
    7,639.60x = 28,028,593.82
  5. Step 5: Solve for x
    x = 28,028,593.82/7,639.60
  6. Step 6: Final answer
    x = 3,668.86

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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.