Home / 2,040.24-2,814.48-1,377.12

Finding the Fourth Proportional to 2,040.24, 2,814.48 and 1,377.12

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Solution

The fourth proportional to 2,040.24, 2,814.48 and 1,377.12 is: 1,899.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,040.24 : 2,814.48 = 1,377.12 : x
  2. Step 2: Convert to fraction form
    2,040.24/2,814.48 = 1,377.12/x
  3. Step 3: Cross multiply
    2,040.24x = 2,814.48 × 1,377.12
  4. Step 4: Simplify right side
    2,040.24x = 3,875,876.70
  5. Step 5: Solve for x
    x = 3,875,876.70/2,040.24
  6. Step 6: Final answer
    x = 1,899.72

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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.