Home / 2,985.41-4,479.26-1,112.47

Finding the Fourth Proportional to 2,985.41, 4,479.26 and 1,112.47

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Solution

The fourth proportional to 2,985.41, 4,479.26 and 1,112.47 is: 1,669.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,985.41 : 4,479.26 = 1,112.47 : x
  2. Step 2: Convert to fraction form
    2,985.41/4,479.26 = 1,112.47/x
  3. Step 3: Cross multiply
    2,985.41x = 4,479.26 × 1,112.47
  4. Step 4: Simplify right side
    2,985.41x = 4,983,025.61
  5. Step 5: Solve for x
    x = 4,983,025.61/2,985.41
  6. Step 6: Final answer
    x = 1,669.12

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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.