Home / 5,679.16-8,517.30-2,557.40

Finding the Fourth Proportional to 5,679.16, 8,517.30 and 2,557.40

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Solution

The fourth proportional to 5,679.16, 8,517.30 and 2,557.40 is: 3,835.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,679.16 : 8,517.30 = 2,557.40 : x
  2. Step 2: Convert to fraction form
    5,679.16/8,517.30 = 2,557.40/x
  3. Step 3: Cross multiply
    5,679.16x = 8,517.30 × 2,557.40
  4. Step 4: Simplify right side
    5,679.16x = 21,782,143.02
  5. Step 5: Solve for x
    x = 21,782,143.02/5,679.16
  6. Step 6: Final answer
    x = 3,835.45

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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.