Home / 5,121.04-7,063.40-3,418.69

Finding the Fourth Proportional to 5,121.04, 7,063.40 and 3,418.69

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Solution

The fourth proportional to 5,121.04, 7,063.40 and 3,418.69 is: 4,715.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121.04 : 7,063.40 = 3,418.69 : x
  2. Step 2: Convert to fraction form
    5,121.04/7,063.40 = 3,418.69/x
  3. Step 3: Cross multiply
    5,121.04x = 7,063.40 × 3,418.69
  4. Step 4: Simplify right side
    5,121.04x = 24,147,574.95
  5. Step 5: Solve for x
    x = 24,147,574.95/5,121.04
  6. Step 6: Final answer
    x = 4,715.37

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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.