Home / 7,158.12-10,725.62-3,872.76

Finding the Fourth Proportional to 7,158.12, 10,725.62 and 3,872.76

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Solution

The fourth proportional to 7,158.12, 10,725.62 and 3,872.76 is: 5,802.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,158.12 : 10,725.62 = 3,872.76 : x
  2. Step 2: Convert to fraction form
    7,158.12/10,725.62 = 3,872.76/x
  3. Step 3: Cross multiply
    7,158.12x = 10,725.62 × 3,872.76
  4. Step 4: Simplify right side
    7,158.12x = 41,537,752.11
  5. Step 5: Solve for x
    x = 41,537,752.11/7,158.12
  6. Step 6: Final answer
    x = 5,802.89

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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.