Home / 2,040.52-2,814.98-1,377.80

Finding the Fourth Proportional to 2,040.52, 2,814.98 and 1,377.80

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Solution

The fourth proportional to 2,040.52, 2,814.98 and 1,377.80 is: 1,900.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,040.52 : 2,814.98 = 1,377.80 : x
  2. Step 2: Convert to fraction form
    2,040.52/2,814.98 = 1,377.80/x
  3. Step 3: Cross multiply
    2,040.52x = 2,814.98 × 1,377.80
  4. Step 4: Simplify right side
    2,040.52x = 3,878,479.44
  5. Step 5: Solve for x
    x = 3,878,479.44/2,040.52
  6. Step 6: Final answer
    x = 1,900.73

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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.