Home / 3,736.80-5,158.08-2,561.76

Finding the Fourth Proportional to 3,736.80, 5,158.08 and 2,561.76

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Solution

The fourth proportional to 3,736.80, 5,158.08 and 2,561.76 is: 3,536.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,736.80 : 5,158.08 = 2,561.76 : x
  2. Step 2: Convert to fraction form
    3,736.80/5,158.08 = 2,561.76/x
  3. Step 3: Cross multiply
    3,736.80x = 5,158.08 × 2,561.76
  4. Step 4: Simplify right side
    3,736.80x = 13,213,763.02
  5. Step 5: Solve for x
    x = 13,213,763.02/3,736.80
  6. Step 6: Final answer
    x = 3,536.12

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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.