Home / 3,117-4,675.50-1,170.12

Finding the Fourth Proportional to 3,117, 4,675.50 and 1,170.12

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Solution

The fourth proportional to 3,117, 4,675.50 and 1,170.12 is: 1,755.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117 : 4,675.50 = 1,170.12 : x
  2. Step 2: Convert to fraction form
    3,117/4,675.50 = 1,170.12/x
  3. Step 3: Cross multiply
    3,117x = 4,675.50 × 1,170.12
  4. Step 4: Simplify right side
    3,117x = 5,470,896.06
  5. Step 5: Solve for x
    x = 5,470,896.06/3,117
  6. Step 6: Final answer
    x = 1,755.18

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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.