Home / 2,117.27-3,170.88-1,237.57

Finding the Fourth Proportional to 2,117.27, 3,170.88 and 1,237.57

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Solution

The fourth proportional to 2,117.27, 3,170.88 and 1,237.57 is: 1,853.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117.27 : 3,170.88 = 1,237.57 : x
  2. Step 2: Convert to fraction form
    2,117.27/3,170.88 = 1,237.57/x
  3. Step 3: Cross multiply
    2,117.27x = 3,170.88 × 1,237.57
  4. Step 4: Simplify right side
    2,117.27x = 3,924,178.03
  5. Step 5: Solve for x
    x = 3,924,178.03/2,117.27
  6. Step 6: Final answer
    x = 1,853.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.