Home / 3,542.11-4,887.78-1,948.74

Finding the Fourth Proportional to 3,542.11, 4,887.78 and 1,948.74

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Solution

The fourth proportional to 3,542.11, 4,887.78 and 1,948.74 is: 2,689.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,542.11 : 4,887.78 = 1,948.74 : x
  2. Step 2: Convert to fraction form
    3,542.11/4,887.78 = 1,948.74/x
  3. Step 3: Cross multiply
    3,542.11x = 4,887.78 × 1,948.74
  4. Step 4: Simplify right side
    3,542.11x = 9,525,014.25
  5. Step 5: Solve for x
    x = 9,525,014.25/3,542.11
  6. Step 6: Final answer
    x = 2,689.08

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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.