Home / 2,079.40-2,868.30-1,519.20

Finding the Fourth Proportional to 2,079.40, 2,868.30 and 1,519.20

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Solution

The fourth proportional to 2,079.40, 2,868.30 and 1,519.20 is: 2,095.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.40 : 2,868.30 = 1,519.20 : x
  2. Step 2: Convert to fraction form
    2,079.40/2,868.30 = 1,519.20/x
  3. Step 3: Cross multiply
    2,079.40x = 2,868.30 × 1,519.20
  4. Step 4: Simplify right side
    2,079.40x = 4,357,521.36
  5. Step 5: Solve for x
    x = 4,357,521.36/2,079.40
  6. Step 6: Final answer
    x = 2,095.57

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1.5x scale

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.