Home / 5,148.65-7,105.57-2,910.92

Finding the Fourth Proportional to 5,148.65, 7,105.57 and 2,910.92

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Solution

The fourth proportional to 5,148.65, 7,105.57 and 2,910.92 is: 4,017.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.65 : 7,105.57 = 2,910.92 : x
  2. Step 2: Convert to fraction form
    5,148.65/7,105.57 = 2,910.92/x
  3. Step 3: Cross multiply
    5,148.65x = 7,105.57 × 2,910.92
  4. Step 4: Simplify right side
    5,148.65x = 20,683,759.36
  5. Step 5: Solve for x
    x = 20,683,759.36/5,148.65
  6. Step 6: Final answer
    x = 4,017.32

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Half scale
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Double scale
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Similar ratio
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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.