Home / 5,151.14-7,719.65-3,393.50

Finding the Fourth Proportional to 5,151.14, 7,719.65 and 3,393.50

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Solution

The fourth proportional to 5,151.14, 7,719.65 and 3,393.50 is: 5,085.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,151.14 : 7,719.65 = 3,393.50 : x
  2. Step 2: Convert to fraction form
    5,151.14/7,719.65 = 3,393.50/x
  3. Step 3: Cross multiply
    5,151.14x = 7,719.65 × 3,393.50
  4. Step 4: Simplify right side
    5,151.14x = 26,196,608.52
  5. Step 5: Solve for x
    x = 26,196,608.52/5,151.14
  6. Step 6: Final answer
    x = 5,085.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.