Home / 2,013.38-2,778.47-1,314.75

Finding the Fourth Proportional to 2,013.38, 2,778.47 and 1,314.75

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Solution

The fourth proportional to 2,013.38, 2,778.47 and 1,314.75 is: 1,814.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,013.38 : 2,778.47 = 1,314.75 : x
  2. Step 2: Convert to fraction form
    2,013.38/2,778.47 = 1,314.75/x
  3. Step 3: Cross multiply
    2,013.38x = 2,778.47 × 1,314.75
  4. Step 4: Simplify right side
    2,013.38x = 3,652,986.86
  5. Step 5: Solve for x
    x = 3,652,986.86/2,013.38
  6. Step 6: Final answer
    x = 1,814.36

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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.