Home / 7,158.19-9,879.10-4,175.89

Finding the Fourth Proportional to 7,158.19, 9,879.10 and 4,175.89

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Solution

The fourth proportional to 7,158.19, 9,879.10 and 4,175.89 is: 5,763.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,158.19 : 9,879.10 = 4,175.89 : x
  2. Step 2: Convert to fraction form
    7,158.19/9,879.10 = 4,175.89/x
  3. Step 3: Cross multiply
    7,158.19x = 9,879.10 × 4,175.89
  4. Step 4: Simplify right side
    7,158.19x = 41,254,034.90
  5. Step 5: Solve for x
    x = 41,254,034.90/7,158.19
  6. Step 6: Final answer
    x = 5,763.19

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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.