Home / 2,079.30-3,118.95-846.75

Finding the Fourth Proportional to 2,079.30, 3,118.95 and 846.75

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Solution

The fourth proportional to 2,079.30, 3,118.95 and 846.75 is: 1,270.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.30 : 3,118.95 = 846.75 : x
  2. Step 2: Convert to fraction form
    2,079.30/3,118.95 = 846.75/x
  3. Step 3: Cross multiply
    2,079.30x = 3,118.95 × 846.75
  4. Step 4: Simplify right side
    2,079.30x = 2,640,970.91
  5. Step 5: Solve for x
    x = 2,640,970.91/2,079.30
  6. Step 6: Final answer
    x = 1,270.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.