Home / 2,514.48-3,474.15-1,987.40

Finding the Fourth Proportional to 2,514.48, 3,474.15 and 1,987.40

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Solution

The fourth proportional to 2,514.48, 3,474.15 and 1,987.40 is: 2,745.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,514.48 : 3,474.15 = 1,987.40 : x
  2. Step 2: Convert to fraction form
    2,514.48/3,474.15 = 1,987.40/x
  3. Step 3: Cross multiply
    2,514.48x = 3,474.15 × 1,987.40
  4. Step 4: Simplify right side
    2,514.48x = 6,904,525.71
  5. Step 5: Solve for x
    x = 6,904,525.71/2,514.48
  6. Step 6: Final answer
    x = 2,745.91

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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.