Home / 3,056.76-4,218.20-1,659.50

Finding the Fourth Proportional to 3,056.76, 4,218.20 and 1,659.50

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Solution

The fourth proportional to 3,056.76, 4,218.20 and 1,659.50 is: 2,290.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,056.76 : 4,218.20 = 1,659.50 : x
  2. Step 2: Convert to fraction form
    3,056.76/4,218.20 = 1,659.50/x
  3. Step 3: Cross multiply
    3,056.76x = 4,218.20 × 1,659.50
  4. Step 4: Simplify right side
    3,056.76x = 7,000,102.90
  5. Step 5: Solve for x
    x = 7,000,102.90/3,056.76
  6. Step 6: Final answer
    x = 2,290.04

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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.