Home / 6,686.56-9,225.36-3,891.52

Finding the Fourth Proportional to 6,686.56, 9,225.36 and 3,891.52

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Solution

The fourth proportional to 6,686.56, 9,225.36 and 3,891.52 is: 5,369.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,686.56 : 9,225.36 = 3,891.52 : x
  2. Step 2: Convert to fraction form
    6,686.56/9,225.36 = 3,891.52/x
  3. Step 3: Cross multiply
    6,686.56x = 9,225.36 × 3,891.52
  4. Step 4: Simplify right side
    6,686.56x = 35,900,672.95
  5. Step 5: Solve for x
    x = 35,900,672.95/6,686.56
  6. Step 6: Final answer
    x = 5,369.08

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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.