Home / 2,039.34-2,815.11-1,542.09

Finding the Fourth Proportional to 2,039.34, 2,815.11 and 1,542.09

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Solution

The fourth proportional to 2,039.34, 2,815.11 and 1,542.09 is: 2,128.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,039.34 : 2,815.11 = 1,542.09 : x
  2. Step 2: Convert to fraction form
    2,039.34/2,815.11 = 1,542.09/x
  3. Step 3: Cross multiply
    2,039.34x = 2,815.11 × 1,542.09
  4. Step 4: Simplify right side
    2,039.34x = 4,341,152.98
  5. Step 5: Solve for x
    x = 4,341,152.98/2,039.34
  6. Step 6: Final answer
    x = 2,128.70

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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.