Home / 4,122.96-5,685.35-3,117.03

Finding the Fourth Proportional to 4,122.96, 5,685.35 and 3,117.03

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Solution

The fourth proportional to 4,122.96, 5,685.35 and 3,117.03 is: 4,298.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,122.96 : 5,685.35 = 3,117.03 : x
  2. Step 2: Convert to fraction form
    4,122.96/5,685.35 = 3,117.03/x
  3. Step 3: Cross multiply
    4,122.96x = 5,685.35 × 3,117.03
  4. Step 4: Simplify right side
    4,122.96x = 17,721,390.93
  5. Step 5: Solve for x
    x = 17,721,390.93/4,122.96
  6. Step 6: Final answer
    x = 4,298.22

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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.