Home / 5,420.11-8,130.03-2,498.41

Finding the Fourth Proportional to 5,420.11, 8,130.03 and 2,498.41

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Solution

The fourth proportional to 5,420.11, 8,130.03 and 2,498.41 is: 3,747.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,420.11 : 8,130.03 = 2,498.41 : x
  2. Step 2: Convert to fraction form
    5,420.11/8,130.03 = 2,498.41/x
  3. Step 3: Cross multiply
    5,420.11x = 8,130.03 × 2,498.41
  4. Step 4: Simplify right side
    5,420.11x = 20,312,166.61
  5. Step 5: Solve for x
    x = 20,312,166.61/5,420.11
  6. Step 6: Final answer
    x = 3,747.56

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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.