Home / 5,182.14-7,151.40-3,057.72

Finding the Fourth Proportional to 5,182.14, 7,151.40 and 3,057.72

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Solution

The fourth proportional to 5,182.14, 7,151.40 and 3,057.72 is: 4,219.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,182.14 : 7,151.40 = 3,057.72 : x
  2. Step 2: Convert to fraction form
    5,182.14/7,151.40 = 3,057.72/x
  3. Step 3: Cross multiply
    5,182.14x = 7,151.40 × 3,057.72
  4. Step 4: Simplify right side
    5,182.14x = 21,866,978.81
  5. Step 5: Solve for x
    x = 21,866,978.81/5,182.14
  6. Step 6: Final answer
    x = 4,219.68

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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.