Home / 3,056.80-4,218.35-1,659.55

Finding the Fourth Proportional to 3,056.80, 4,218.35 and 1,659.55

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Solution

The fourth proportional to 3,056.80, 4,218.35 and 1,659.55 is: 2,290.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,056.80 : 4,218.35 = 1,659.55 : x
  2. Step 2: Convert to fraction form
    3,056.80/4,218.35 = 1,659.55/x
  3. Step 3: Cross multiply
    3,056.80x = 4,218.35 × 1,659.55
  4. Step 4: Simplify right side
    3,056.80x = 7,000,543.90
  5. Step 5: Solve for x
    x = 7,000,543.90/3,056.80
  6. Step 6: Final answer
    x = 2,290.16

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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.