Home / 3,543.89-4,890.44-1,971.95

Finding the Fourth Proportional to 3,543.89, 4,890.44 and 1,971.95

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Solution

The fourth proportional to 3,543.89, 4,890.44 and 1,971.95 is: 2,721.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,543.89 : 4,890.44 = 1,971.95 : x
  2. Step 2: Convert to fraction form
    3,543.89/4,890.44 = 1,971.95/x
  3. Step 3: Cross multiply
    3,543.89x = 4,890.44 × 1,971.95
  4. Step 4: Simplify right side
    3,543.89x = 9,643,683.64
  5. Step 5: Solve for x
    x = 9,643,683.64/3,543.89
  6. Step 6: Final answer
    x = 2,721.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.