Home / 5,475.12-7,555.44-3,117.24

Finding the Fourth Proportional to 5,475.12, 7,555.44 and 3,117.24

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Solution

The fourth proportional to 5,475.12, 7,555.44 and 3,117.24 is: 4,301.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,475.12 : 7,555.44 = 3,117.24 : x
  2. Step 2: Convert to fraction form
    5,475.12/7,555.44 = 3,117.24/x
  3. Step 3: Cross multiply
    5,475.12x = 7,555.44 × 3,117.24
  4. Step 4: Simplify right side
    5,475.12x = 23,552,119.79
  5. Step 5: Solve for x
    x = 23,552,119.79/5,475.12
  6. Step 6: Final answer
    x = 4,301.66

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.