Home / 7,120.10-10,680.15-3,232.10

Finding the Fourth Proportional to 7,120.10, 10,680.15 and 3,232.10

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Solution

The fourth proportional to 7,120.10, 10,680.15 and 3,232.10 is: 4,848.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,120.10 : 10,680.15 = 3,232.10 : x
  2. Step 2: Convert to fraction form
    7,120.10/10,680.15 = 3,232.10/x
  3. Step 3: Cross multiply
    7,120.10x = 10,680.15 × 3,232.10
  4. Step 4: Simplify right side
    7,120.10x = 34,519,312.82
  5. Step 5: Solve for x
    x = 34,519,312.82/7,120.10
  6. Step 6: Final answer
    x = 4,848.15

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.