Home / 5,715.19-7,886.36-3,324.71

Finding the Fourth Proportional to 5,715.19, 7,886.36 and 3,324.71

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Solution

The fourth proportional to 5,715.19, 7,886.36 and 3,324.71 is: 4,587.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,715.19 : 7,886.36 = 3,324.71 : x
  2. Step 2: Convert to fraction form
    5,715.19/7,886.36 = 3,324.71/x
  3. Step 3: Cross multiply
    5,715.19x = 7,886.36 × 3,324.71
  4. Step 4: Simplify right side
    5,715.19x = 26,219,887.98
  5. Step 5: Solve for x
    x = 26,219,887.98/5,715.19
  6. Step 6: Final answer
    x = 4,587.75

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Half 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.