Home / 3,542.30-4,888.68-1,970.50

Finding the Fourth Proportional to 3,542.30, 4,888.68 and 1,970.50

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Solution

The fourth proportional to 3,542.30, 4,888.68 and 1,970.50 is: 2,719.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,542.30 : 4,888.68 = 1,970.50 : x
  2. Step 2: Convert to fraction form
    3,542.30/4,888.68 = 1,970.50/x
  3. Step 3: Cross multiply
    3,542.30x = 4,888.68 × 1,970.50
  4. Step 4: Simplify right side
    3,542.30x = 9,633,143.94
  5. Step 5: Solve for x
    x = 9,633,143.94/3,542.30
  6. Step 6: Final answer
    x = 2,719.46

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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.