Home / 5,420.13-7,478.91-3,061.95

Finding the Fourth Proportional to 5,420.13, 7,478.91 and 3,061.95

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Solution

The fourth proportional to 5,420.13, 7,478.91 and 3,061.95 is: 4,225.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,420.13 : 7,478.91 = 3,061.95 : x
  2. Step 2: Convert to fraction form
    5,420.13/7,478.91 = 3,061.95/x
  3. Step 3: Cross multiply
    5,420.13x = 7,478.91 × 3,061.95
  4. Step 4: Simplify right side
    5,420.13x = 22,900,048.47
  5. Step 5: Solve for x
    x = 22,900,048.47/5,420.13
  6. Step 6: Final answer
    x = 4,225.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.