Home / 5,378.02-7,422.30-3,020.15

Finding the Fourth Proportional to 5,378.02, 7,422.30 and 3,020.15

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Solution

The fourth proportional to 5,378.02, 7,422.30 and 3,020.15 is: 4,168.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378.02 : 7,422.30 = 3,020.15 : x
  2. Step 2: Convert to fraction form
    5,378.02/7,422.30 = 3,020.15/x
  3. Step 3: Cross multiply
    5,378.02x = 7,422.30 × 3,020.15
  4. Step 4: Simplify right side
    5,378.02x = 22,416,477.90
  5. Step 5: Solve for x
    x = 22,416,477.90/5,378.02
  6. Step 6: Final answer
    x = 4,168.17

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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.