Home / 2,101.93-2,901.66-1,217.41

Finding the Fourth Proportional to 2,101.93, 2,901.66 and 1,217.41

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Solution

The fourth proportional to 2,101.93, 2,901.66 and 1,217.41 is: 1,680.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,101.93 : 2,901.66 = 1,217.41 : x
  2. Step 2: Convert to fraction form
    2,101.93/2,901.66 = 1,217.41/x
  3. Step 3: Cross multiply
    2,101.93x = 2,901.66 × 1,217.41
  4. Step 4: Simplify right side
    2,101.93x = 3,532,502.65
  5. Step 5: Solve for x
    x = 3,532,502.65/2,101.93
  6. Step 6: Final answer
    x = 1,680.60

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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.