Home / 5,617.60-7,751.28-3,627.76

Finding the Fourth Proportional to 5,617.60, 7,751.28 and 3,627.76

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Solution

The fourth proportional to 5,617.60, 7,751.28 and 3,627.76 is: 5,005.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,617.60 : 7,751.28 = 3,627.76 : x
  2. Step 2: Convert to fraction form
    5,617.60/7,751.28 = 3,627.76/x
  3. Step 3: Cross multiply
    5,617.60x = 7,751.28 × 3,627.76
  4. Step 4: Simplify right side
    5,617.60x = 28,119,783.53
  5. Step 5: Solve for x
    x = 28,119,783.53/5,617.60
  6. Step 6: Final answer
    x = 5,005.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.