Home / 4,705.55-6,478.88-3,995.90

Finding the Fourth Proportional to 4,705.55, 6,478.88 and 3,995.90

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Solution

The fourth proportional to 4,705.55, 6,478.88 and 3,995.90 is: 5,501.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,705.55 : 6,478.88 = 3,995.90 : x
  2. Step 2: Convert to fraction form
    4,705.55/6,478.88 = 3,995.90/x
  3. Step 3: Cross multiply
    4,705.55x = 6,478.88 × 3,995.90
  4. Step 4: Simplify right side
    4,705.55x = 25,888,904.22
  5. Step 5: Solve for x
    x = 25,888,904.22/4,705.55
  6. Step 6: Final answer
    x = 5,501.79

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.