Home / 2,121.17-2,926.85-1,334.66

Finding the Fourth Proportional to 2,121.17, 2,926.85 and 1,334.66

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Solution

The fourth proportional to 2,121.17, 2,926.85 and 1,334.66 is: 1,841.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121.17 : 2,926.85 = 1,334.66 : x
  2. Step 2: Convert to fraction form
    2,121.17/2,926.85 = 1,334.66/x
  3. Step 3: Cross multiply
    2,121.17x = 2,926.85 × 1,334.66
  4. Step 4: Simplify right side
    2,121.17x = 3,906,328.31
  5. Step 5: Solve for x
    x = 3,906,328.31/2,121.17
  6. Step 6: Final answer
    x = 1,841.60

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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.