Home / 7,175.29-9,899.20-5,291.37

Finding the Fourth Proportional to 7,175.29, 9,899.20 and 5,291.37

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Solution

The fourth proportional to 7,175.29, 9,899.20 and 5,291.37 is: 7,300.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,175.29 : 9,899.20 = 5,291.37 : x
  2. Step 2: Convert to fraction form
    7,175.29/9,899.20 = 5,291.37/x
  3. Step 3: Cross multiply
    7,175.29x = 9,899.20 × 5,291.37
  4. Step 4: Simplify right side
    7,175.29x = 52,380,329.90
  5. Step 5: Solve for x
    x = 52,380,329.90/7,175.29
  6. Step 6: Final answer
    x = 7,300.10

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1.5x scale

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.