Home / 5,186.30-7,157.20-2,948.26

Finding the Fourth Proportional to 5,186.30, 7,157.20 and 2,948.26

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Solution

The fourth proportional to 5,186.30, 7,157.20 and 2,948.26 is: 4,068.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,186.30 : 7,157.20 = 2,948.26 : x
  2. Step 2: Convert to fraction form
    5,186.30/7,157.20 = 2,948.26/x
  3. Step 3: Cross multiply
    5,186.30x = 7,157.20 × 2,948.26
  4. Step 4: Simplify right side
    5,186.30x = 21,101,286.47
  5. Step 5: Solve for x
    x = 21,101,286.47/5,186.30
  6. Step 6: Final answer
    x = 4,068.66

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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.