Home / 5,538.68-8,307.41-1,642.78

Finding the Fourth Proportional to 5,538.68, 8,307.41 and 1,642.78

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Solution

The fourth proportional to 5,538.68, 8,307.41 and 1,642.78 is: 2,463.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,538.68 : 8,307.41 = 1,642.78 : x
  2. Step 2: Convert to fraction form
    5,538.68/8,307.41 = 1,642.78/x
  3. Step 3: Cross multiply
    5,538.68x = 8,307.41 × 1,642.78
  4. Step 4: Simplify right side
    5,538.68x = 13,647,258.41
  5. Step 5: Solve for x
    x = 13,647,258.41/5,538.68
  6. Step 6: Final answer
    x = 2,463.99

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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.