Home / 5,417.20-8,126.31-1,521.59

Finding the Fourth Proportional to 5,417.20, 8,126.31 and 1,521.59

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Solution

The fourth proportional to 5,417.20, 8,126.31 and 1,521.59 is: 2,282.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,417.20 : 8,126.31 = 1,521.59 : x
  2. Step 2: Convert to fraction form
    5,417.20/8,126.31 = 1,521.59/x
  3. Step 3: Cross multiply
    5,417.20x = 8,126.31 × 1,521.59
  4. Step 4: Simplify right side
    5,417.20x = 12,364,912.03
  5. Step 5: Solve for x
    x = 12,364,912.03/5,417.20
  6. Step 6: Final answer
    x = 2,282.53

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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.