Home / 2,074.33-2,862.30-1,288.63

Finding the Fourth Proportional to 2,074.33, 2,862.30 and 1,288.63

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Solution

The fourth proportional to 2,074.33, 2,862.30 and 1,288.63 is: 1,778.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,074.33 : 2,862.30 = 1,288.63 : x
  2. Step 2: Convert to fraction form
    2,074.33/2,862.30 = 1,288.63/x
  3. Step 3: Cross multiply
    2,074.33x = 2,862.30 × 1,288.63
  4. Step 4: Simplify right side
    2,074.33x = 3,688,445.65
  5. Step 5: Solve for x
    x = 3,688,445.65/2,074.33
  6. Step 6: Final answer
    x = 1,778.14

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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.