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Finding the Fourth Proportional to 3,542.15, 4,888.05 and 1,948.79

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Solution

The fourth proportional to 3,542.15, 4,888.05 and 1,948.79 is: 2,689.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,542.15 : 4,888.05 = 1,948.79 : x
  2. Step 2: Convert to fraction form
    3,542.15/4,888.05 = 1,948.79/x
  3. Step 3: Cross multiply
    3,542.15x = 4,888.05 × 1,948.79
  4. Step 4: Simplify right side
    3,542.15x = 9,525,795.18
  5. Step 5: Solve for x
    x = 9,525,795.18/3,542.15
  6. Step 6: Final answer
    x = 2,689.27

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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.