Home / 5,311.10-7,965.59-5,047.65

Finding the Fourth Proportional to 5,311.10, 7,965.59 and 5,047.65

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Solution

The fourth proportional to 5,311.10, 7,965.59 and 5,047.65 is: 7,570.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311.10 : 7,965.59 = 5,047.65 : x
  2. Step 2: Convert to fraction form
    5,311.10/7,965.59 = 5,047.65/x
  3. Step 3: Cross multiply
    5,311.10x = 7,965.59 × 5,047.65
  4. Step 4: Simplify right side
    5,311.10x = 40,207,485.13
  5. Step 5: Solve for x
    x = 40,207,485.13/5,311.10
  6. Step 6: Final answer
    x = 7,570.46

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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.