Home / 2,079.20-3,118.73-846.29

Finding the Fourth Proportional to 2,079.20, 3,118.73 and 846.29

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Solution

The fourth proportional to 2,079.20, 3,118.73 and 846.29 is: 1,269.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.20 : 3,118.73 = 846.29 : x
  2. Step 2: Convert to fraction form
    2,079.20/3,118.73 = 846.29/x
  3. Step 3: Cross multiply
    2,079.20x = 3,118.73 × 846.29
  4. Step 4: Simplify right side
    2,079.20x = 2,639,350.01
  5. Step 5: Solve for x
    x = 2,639,350.01/2,079.20
  6. Step 6: Final answer
    x = 1,269.41

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1.5x scale

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.