Home / 5,538.60-7,643.22-3,020.75

Finding the Fourth Proportional to 5,538.60, 7,643.22 and 3,020.75

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Solution

The fourth proportional to 5,538.60, 7,643.22 and 3,020.75 is: 4,168.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,538.60 : 7,643.22 = 3,020.75 : x
  2. Step 2: Convert to fraction form
    5,538.60/7,643.22 = 3,020.75/x
  3. Step 3: Cross multiply
    5,538.60x = 7,643.22 × 3,020.75
  4. Step 4: Simplify right side
    5,538.60x = 23,088,256.82
  5. Step 5: Solve for x
    x = 23,088,256.82/5,538.60
  6. Step 6: Final answer
    x = 4,168.61

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Find fourth proportional to 2,769.30, 3,821.61 and 1,510.38
Half scale
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Double 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.