Home / 5,123.19-7,074.63-3,238.12

Finding the Fourth Proportional to 5,123.19, 7,074.63 and 3,238.12

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Solution

The fourth proportional to 5,123.19, 7,074.63 and 3,238.12 is: 4,471.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,123.19 : 7,074.63 = 3,238.12 : x
  2. Step 2: Convert to fraction form
    5,123.19/7,074.63 = 3,238.12/x
  3. Step 3: Cross multiply
    5,123.19x = 7,074.63 × 3,238.12
  4. Step 4: Simplify right side
    5,123.19x = 22,908,483.21
  5. Step 5: Solve for x
    x = 22,908,483.21/5,123.19
  6. Step 6: Final answer
    x = 4,471.53

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Half scale
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Double scale
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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.