Home / 5,070.19-7,605.25-1,372.80

Finding the Fourth Proportional to 5,070.19, 7,605.25 and 1,372.80

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Solution

The fourth proportional to 5,070.19, 7,605.25 and 1,372.80 is: 2,059.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,070.19 : 7,605.25 = 1,372.80 : x
  2. Step 2: Convert to fraction form
    5,070.19/7,605.25 = 1,372.80/x
  3. Step 3: Cross multiply
    5,070.19x = 7,605.25 × 1,372.80
  4. Step 4: Simplify right side
    5,070.19x = 10,440,442.31
  5. Step 5: Solve for x
    x = 10,440,442.31/5,070.19
  6. Step 6: Final answer
    x = 2,059.18

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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.