Home / 3,655.98-5,478.48-2,549.12

Finding the Fourth Proportional to 3,655.98, 5,478.48 and 2,549.12

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Solution

The fourth proportional to 3,655.98, 5,478.48 and 2,549.12 is: 3,819.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,655.98 : 5,478.48 = 2,549.12 : x
  2. Step 2: Convert to fraction form
    3,655.98/5,478.48 = 2,549.12/x
  3. Step 3: Cross multiply
    3,655.98x = 5,478.48 × 2,549.12
  4. Step 4: Simplify right side
    3,655.98x = 13,965,275.55
  5. Step 5: Solve for x
    x = 13,965,275.55/3,655.98
  6. Step 6: Final answer
    x = 3,819.84

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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.