Home / 2,767.47-3,818.29-1,647.85

Finding the Fourth Proportional to 2,767.47, 3,818.29 and 1,647.85

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Solution

The fourth proportional to 2,767.47, 3,818.29 and 1,647.85 is: 2,273.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,767.47 : 3,818.29 = 1,647.85 : x
  2. Step 2: Convert to fraction form
    2,767.47/3,818.29 = 1,647.85/x
  3. Step 3: Cross multiply
    2,767.47x = 3,818.29 × 1,647.85
  4. Step 4: Simplify right side
    2,767.47x = 6,291,969.18
  5. Step 5: Solve for x
    x = 6,291,969.18/2,767.47
  6. Step 6: Final answer
    x = 2,273.55

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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.