Home / 2,985.93-4,480.47-2,170.95

Finding the Fourth Proportional to 2,985.93, 4,480.47 and 2,170.95

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Solution

The fourth proportional to 2,985.93, 4,480.47 and 2,170.95 is: 3,257.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,985.93 : 4,480.47 = 2,170.95 : x
  2. Step 2: Convert to fraction form
    2,985.93/4,480.47 = 2,170.95/x
  3. Step 3: Cross multiply
    2,985.93x = 4,480.47 × 2,170.95
  4. Step 4: Simplify right side
    2,985.93x = 9,726,876.35
  5. Step 5: Solve for x
    x = 9,726,876.35/2,985.93
  6. Step 6: Final answer
    x = 3,257.57

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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.