Home / 2,778.29-3,833.85-1,583.13

Finding the Fourth Proportional to 2,778.29, 3,833.85 and 1,583.13

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Solution

The fourth proportional to 2,778.29, 3,833.85 and 1,583.13 is: 2,184.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778.29 : 3,833.85 = 1,583.13 : x
  2. Step 2: Convert to fraction form
    2,778.29/3,833.85 = 1,583.13/x
  3. Step 3: Cross multiply
    2,778.29x = 3,833.85 × 1,583.13
  4. Step 4: Simplify right side
    2,778.29x = 6,069,482.95
  5. Step 5: Solve for x
    x = 6,069,482.95/2,778.29
  6. Step 6: Final answer
    x = 2,184.61

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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.