Home / 5,186.58-7,157.19-2,948.15

Finding the Fourth Proportional to 5,186.58, 7,157.19 and 2,948.15

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Solution

The fourth proportional to 5,186.58, 7,157.19 and 2,948.15 is: 4,068.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,186.58 : 7,157.19 = 2,948.15 : x
  2. Step 2: Convert to fraction form
    5,186.58/7,157.19 = 2,948.15/x
  3. Step 3: Cross multiply
    5,186.58x = 7,157.19 × 2,948.15
  4. Step 4: Simplify right side
    5,186.58x = 21,100,433.91
  5. Step 5: Solve for x
    x = 21,100,433.91/5,186.58
  6. Step 6: Final answer
    x = 4,068.28

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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.