Home / 2,275.04-3,409.79-1,285.40

Finding the Fourth Proportional to 2,275.04, 3,409.79 and 1,285.40

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Solution

The fourth proportional to 2,275.04, 3,409.79 and 1,285.40 is: 1,926.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,275.04 : 3,409.79 = 1,285.40 : x
  2. Step 2: Convert to fraction form
    2,275.04/3,409.79 = 1,285.40/x
  3. Step 3: Cross multiply
    2,275.04x = 3,409.79 × 1,285.40
  4. Step 4: Simplify right side
    2,275.04x = 4,382,920.59
  5. Step 5: Solve for x
    x = 4,382,920.59/2,275.04
  6. Step 6: Final answer
    x = 1,926.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.