Home / 3,259.45-4,495.65-2,139.98

Finding the Fourth Proportional to 3,259.45, 4,495.65 and 2,139.98

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Solution

The fourth proportional to 3,259.45, 4,495.65 and 2,139.98 is: 2,951.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,259.45 : 4,495.65 = 2,139.98 : x
  2. Step 2: Convert to fraction form
    3,259.45/4,495.65 = 2,139.98/x
  3. Step 3: Cross multiply
    3,259.45x = 4,495.65 × 2,139.98
  4. Step 4: Simplify right side
    3,259.45x = 9,620,595.47
  5. Step 5: Solve for x
    x = 9,620,595.47/3,259.45
  6. Step 6: Final answer
    x = 2,951.60

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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.