Home / 2,079.49-3,119.80-1,038.23

Finding the Fourth Proportional to 2,079.49, 3,119.80 and 1,038.23

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Solution

The fourth proportional to 2,079.49, 3,119.80 and 1,038.23 is: 1,557.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.49 : 3,119.80 = 1,038.23 : x
  2. Step 2: Convert to fraction form
    2,079.49/3,119.80 = 1,038.23/x
  3. Step 3: Cross multiply
    2,079.49x = 3,119.80 × 1,038.23
  4. Step 4: Simplify right side
    2,079.49x = 3,239,069.95
  5. Step 5: Solve for x
    x = 3,239,069.95/2,079.49
  6. Step 6: Final answer
    x = 1,557.63

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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.