Home / 2,079.19-3,119.55-846.95

Finding the Fourth Proportional to 2,079.19, 3,119.55 and 846.95

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Solution

The fourth proportional to 2,079.19, 3,119.55 and 846.95 is: 1,270.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.19 : 3,119.55 = 846.95 : x
  2. Step 2: Convert to fraction form
    2,079.19/3,119.55 = 846.95/x
  3. Step 3: Cross multiply
    2,079.19x = 3,119.55 × 846.95
  4. Step 4: Simplify right side
    2,079.19x = 2,642,103.03
  5. Step 5: Solve for x
    x = 2,642,103.03/2,079.19
  6. Step 6: Final answer
    x = 1,270.74

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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.