Home / 2,782.04-3,834.80-2,221.52

Finding the Fourth Proportional to 2,782.04, 3,834.80 and 2,221.52

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Solution

The fourth proportional to 2,782.04, 3,834.80 and 2,221.52 is: 3,062.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,782.04 : 3,834.80 = 2,221.52 : x
  2. Step 2: Convert to fraction form
    2,782.04/3,834.80 = 2,221.52/x
  3. Step 3: Cross multiply
    2,782.04x = 3,834.80 × 2,221.52
  4. Step 4: Simplify right side
    2,782.04x = 8,519,084.90
  5. Step 5: Solve for x
    x = 8,519,084.90/2,782.04
  6. Step 6: Final answer
    x = 3,062.17

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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.