Home / 5,360.20-8,040.30-5,117.20

Finding the Fourth Proportional to 5,360.20, 8,040.30 and 5,117.20

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Solution

The fourth proportional to 5,360.20, 8,040.30 and 5,117.20 is: 7,675.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,360.20 : 8,040.30 = 5,117.20 : x
  2. Step 2: Convert to fraction form
    5,360.20/8,040.30 = 5,117.20/x
  3. Step 3: Cross multiply
    5,360.20x = 8,040.30 × 5,117.20
  4. Step 4: Simplify right side
    5,360.20x = 41,143,823.16
  5. Step 5: Solve for x
    x = 41,143,823.16/5,360.20
  6. Step 6: Final answer
    x = 7,675.80

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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.