Home / 3,140.08-4,333.65-2,006.79

Finding the Fourth Proportional to 3,140.08, 4,333.65 and 2,006.79

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Solution

The fourth proportional to 3,140.08, 4,333.65 and 2,006.79 is: 2,769.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.08 : 4,333.65 = 2,006.79 : x
  2. Step 2: Convert to fraction form
    3,140.08/4,333.65 = 2,006.79/x
  3. Step 3: Cross multiply
    3,140.08x = 4,333.65 × 2,006.79
  4. Step 4: Simplify right side
    3,140.08x = 8,696,725.48
  5. Step 5: Solve for x
    x = 8,696,725.48/3,140.08
  6. Step 6: Final answer
    x = 2,769.59

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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.