Home / 7,128.98-10,695.29-2,967.60

Finding the Fourth Proportional to 7,128.98, 10,695.29 and 2,967.60

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Solution

The fourth proportional to 7,128.98, 10,695.29 and 2,967.60 is: 4,452.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128.98 : 10,695.29 = 2,967.60 : x
  2. Step 2: Convert to fraction form
    7,128.98/10,695.29 = 2,967.60/x
  3. Step 3: Cross multiply
    7,128.98x = 10,695.29 × 2,967.60
  4. Step 4: Simplify right side
    7,128.98x = 31,739,335.19
  5. Step 5: Solve for x
    x = 31,739,335.19/7,128.98
  6. Step 6: Final answer
    x = 4,452.16

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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.