Home / 2,987.41-4,482.02-1,207.55

Finding the Fourth Proportional to 2,987.41, 4,482.02 and 1,207.55

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Solution

The fourth proportional to 2,987.41, 4,482.02 and 1,207.55 is: 1,811.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,987.41 : 4,482.02 = 1,207.55 : x
  2. Step 2: Convert to fraction form
    2,987.41/4,482.02 = 1,207.55/x
  3. Step 3: Cross multiply
    2,987.41x = 4,482.02 × 1,207.55
  4. Step 4: Simplify right side
    2,987.41x = 5,412,263.25
  5. Step 5: Solve for x
    x = 5,412,263.25/2,987.41
  6. Step 6: Final answer
    x = 1,811.69

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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.