Home / 2,117.96-2,921.58-1,233.66

Finding the Fourth Proportional to 2,117.96, 2,921.58 and 1,233.66

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Solution

The fourth proportional to 2,117.96, 2,921.58 and 1,233.66 is: 1,701.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117.96 : 2,921.58 = 1,233.66 : x
  2. Step 2: Convert to fraction form
    2,117.96/2,921.58 = 1,233.66/x
  3. Step 3: Cross multiply
    2,117.96x = 2,921.58 × 1,233.66
  4. Step 4: Simplify right side
    2,117.96x = 3,604,236.38
  5. Step 5: Solve for x
    x = 3,604,236.38/2,117.96
  6. Step 6: Final answer
    x = 1,701.75

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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.