Home / 6,135.05-8,461.55-4,117.80

Finding the Fourth Proportional to 6,135.05, 8,461.55 and 4,117.80

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Solution

The fourth proportional to 6,135.05, 8,461.55 and 4,117.80 is: 5,679.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,135.05 : 8,461.55 = 4,117.80 : x
  2. Step 2: Convert to fraction form
    6,135.05/8,461.55 = 4,117.80/x
  3. Step 3: Cross multiply
    6,135.05x = 8,461.55 × 4,117.80
  4. Step 4: Simplify right side
    6,135.05x = 34,842,957.38
  5. Step 5: Solve for x
    x = 34,842,957.38/6,135.05
  6. Step 6: Final answer
    x = 5,679.33

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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.