Home / 3,014.72-4,160.76-2,178.24

Finding the Fourth Proportional to 3,014.72, 4,160.76 and 2,178.24

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Solution

The fourth proportional to 3,014.72, 4,160.76 and 2,178.24 is: 3,006.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,014.72 : 4,160.76 = 2,178.24 : x
  2. Step 2: Convert to fraction form
    3,014.72/4,160.76 = 2,178.24/x
  3. Step 3: Cross multiply
    3,014.72x = 4,160.76 × 2,178.24
  4. Step 4: Simplify right side
    3,014.72x = 9,063,133.86
  5. Step 5: Solve for x
    x = 9,063,133.86/3,014.72
  6. Step 6: Final answer
    x = 3,006.29

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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.