Home / 5,612.55-8,415.86-2,491.20

Finding the Fourth Proportional to 5,612.55, 8,415.86 and 2,491.20

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Solution

The fourth proportional to 5,612.55, 8,415.86 and 2,491.20 is: 3,735.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,612.55 : 8,415.86 = 2,491.20 : x
  2. Step 2: Convert to fraction form
    5,612.55/8,415.86 = 2,491.20/x
  3. Step 3: Cross multiply
    5,612.55x = 8,415.86 × 2,491.20
  4. Step 4: Simplify right side
    5,612.55x = 20,965,577.98
  5. Step 5: Solve for x
    x = 20,965,577.98/5,612.55
  6. Step 6: Final answer
    x = 3,735.48

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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.