Home / 3,542.70-4,889.01-1,970.89

Finding the Fourth Proportional to 3,542.70, 4,889.01 and 1,970.89

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Solution

The fourth proportional to 3,542.70, 4,889.01 and 1,970.89 is: 2,719.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,542.70 : 4,889.01 = 1,970.89 : x
  2. Step 2: Convert to fraction form
    3,542.70/4,889.01 = 1,970.89/x
  3. Step 3: Cross multiply
    3,542.70x = 4,889.01 × 1,970.89
  4. Step 4: Simplify right side
    3,542.70x = 9,635,700.92
  5. Step 5: Solve for x
    x = 9,635,700.92/3,542.70
  6. Step 6: Final answer
    x = 2,719.87

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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.