Home / 5,040.32-7,561.76-1,577.60

Finding the Fourth Proportional to 5,040.32, 7,561.76 and 1,577.60

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Solution

The fourth proportional to 5,040.32, 7,561.76 and 1,577.60 is: 2,366.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,040.32 : 7,561.76 = 1,577.60 : x
  2. Step 2: Convert to fraction form
    5,040.32/7,561.76 = 1,577.60/x
  3. Step 3: Cross multiply
    5,040.32x = 7,561.76 × 1,577.60
  4. Step 4: Simplify right side
    5,040.32x = 11,929,432.58
  5. Step 5: Solve for x
    x = 11,929,432.58/5,040.32
  6. Step 6: Final answer
    x = 2,366.80

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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.