Home / 2,987.35-4,482.24-1,342.78

Finding the Fourth Proportional to 2,987.35, 4,482.24 and 1,342.78

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Solution

The fourth proportional to 2,987.35, 4,482.24 and 1,342.78 is: 2,014.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,987.35 : 4,482.24 = 1,342.78 : x
  2. Step 2: Convert to fraction form
    2,987.35/4,482.24 = 1,342.78/x
  3. Step 3: Cross multiply
    2,987.35x = 4,482.24 × 1,342.78
  4. Step 4: Simplify right side
    2,987.35x = 6,018,662.23
  5. Step 5: Solve for x
    x = 6,018,662.23/2,987.35
  6. Step 6: Final answer
    x = 2,014.72

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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.