Home / 1,969.18-2,717.48-1,085.00

Finding the Fourth Proportional to 1,969.18, 2,717.48 and 1,085.00

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Solution

The fourth proportional to 1,969.18, 2,717.48 and 1,085.00 is: 1,497.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,969.18 : 2,717.48 = 1,085.00 : x
  2. Step 2: Convert to fraction form
    1,969.18/2,717.48 = 1,085.00/x
  3. Step 3: Cross multiply
    1,969.18x = 2,717.48 × 1,085.00
  4. Step 4: Simplify right side
    1,969.18x = 2,948,454.93
  5. Step 5: Solve for x
    x = 2,948,454.93/1,969.18
  6. Step 6: Final answer
    x = 1,497.30

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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.