Home / 7,207.62-10,815.70-3,047.40

Finding the Fourth Proportional to 7,207.62, 10,815.70 and 3,047.40

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Solution

The fourth proportional to 7,207.62, 10,815.70 and 3,047.40 is: 4,572.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,207.62 : 10,815.70 = 3,047.40 : x
  2. Step 2: Convert to fraction form
    7,207.62/10,815.70 = 3,047.40/x
  3. Step 3: Cross multiply
    7,207.62x = 10,815.70 × 3,047.40
  4. Step 4: Simplify right side
    7,207.62x = 32,959,764.18
  5. Step 5: Solve for x
    x = 32,959,764.18/7,207.62
  6. Step 6: Final answer
    x = 4,572.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.