Home / 5,555.20-7,666.40-3,197.34

Finding the Fourth Proportional to 5,555.20, 7,666.40 and 3,197.34

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Solution

The fourth proportional to 5,555.20, 7,666.40 and 3,197.34 is: 4,412.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,555.20 : 7,666.40 = 3,197.34 : x
  2. Step 2: Convert to fraction form
    5,555.20/7,666.40 = 3,197.34/x
  3. Step 3: Cross multiply
    5,555.20x = 7,666.40 × 3,197.34
  4. Step 4: Simplify right side
    5,555.20x = 24,512,087.38
  5. Step 5: Solve for x
    x = 24,512,087.38/5,555.20
  6. Step 6: Final answer
    x = 4,412.46

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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.