Home / 5,217.98-7,826.75-1,520.13

Finding the Fourth Proportional to 5,217.98, 7,826.75 and 1,520.13

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Solution

The fourth proportional to 5,217.98, 7,826.75 and 1,520.13 is: 2,280.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217.98 : 7,826.75 = 1,520.13 : x
  2. Step 2: Convert to fraction form
    5,217.98/7,826.75 = 1,520.13/x
  3. Step 3: Cross multiply
    5,217.98x = 7,826.75 × 1,520.13
  4. Step 4: Simplify right side
    5,217.98x = 11,897,677.48
  5. Step 5: Solve for x
    x = 11,897,677.48/5,217.98
  6. Step 6: Final answer
    x = 2,280.13

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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.