Home / 2,987.37-4,479.53-1,755.15

Finding the Fourth Proportional to 2,987.37, 4,479.53 and 1,755.15

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Solution

The fourth proportional to 2,987.37, 4,479.53 and 1,755.15 is: 2,631.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,987.37 : 4,479.53 = 1,755.15 : x
  2. Step 2: Convert to fraction form
    2,987.37/4,479.53 = 1,755.15/x
  3. Step 3: Cross multiply
    2,987.37x = 4,479.53 × 1,755.15
  4. Step 4: Simplify right side
    2,987.37x = 7,862,238.30
  5. Step 5: Solve for x
    x = 7,862,238.30/2,987.37
  6. Step 6: Final answer
    x = 2,631.83

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1.5x scale

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.