Home / 1,961.66-2,707.17-1,122.50

Finding the Fourth Proportional to 1,961.66, 2,707.17 and 1,122.50

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Solution

The fourth proportional to 1,961.66, 2,707.17 and 1,122.50 is: 1,549.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,961.66 : 2,707.17 = 1,122.50 : x
  2. Step 2: Convert to fraction form
    1,961.66/2,707.17 = 1,122.50/x
  3. Step 3: Cross multiply
    1,961.66x = 2,707.17 × 1,122.50
  4. Step 4: Simplify right side
    1,961.66x = 3,038,798.33
  5. Step 5: Solve for x
    x = 3,038,798.33/1,961.66
  6. Step 6: Final answer
    x = 1,549.10

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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.