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Finding the Fourth Proportional to 2,012.74, 2,779.15 and 1,304.92

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Solution

The fourth proportional to 2,012.74, 2,779.15 and 1,304.92 is: 1,801.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,012.74 : 2,779.15 = 1,304.92 : x
  2. Step 2: Convert to fraction form
    2,012.74/2,779.15 = 1,304.92/x
  3. Step 3: Cross multiply
    2,012.74x = 2,779.15 × 1,304.92
  4. Step 4: Simplify right side
    2,012.74x = 3,626,554.52
  5. Step 5: Solve for x
    x = 3,626,554.52/2,012.74
  6. Step 6: Final answer
    x = 1,801.80

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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.