Home / 2,749.80-4,124.70-2,591.40

Finding the Fourth Proportional to 2,749.80, 4,124.70 and 2,591.40

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Solution

The fourth proportional to 2,749.80, 4,124.70 and 2,591.40 is: 3,887.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,749.80 : 4,124.70 = 2,591.40 : x
  2. Step 2: Convert to fraction form
    2,749.80/4,124.70 = 2,591.40/x
  3. Step 3: Cross multiply
    2,749.80x = 4,124.70 × 2,591.40
  4. Step 4: Simplify right side
    2,749.80x = 10,688,747.58
  5. Step 5: Solve for x
    x = 10,688,747.58/2,749.80
  6. Step 6: Final answer
    x = 3,887.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.