Home / 3,403.40-4,697.21-2,077.87

Finding the Fourth Proportional to 3,403.40, 4,697.21 and 2,077.87

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Solution

The fourth proportional to 3,403.40, 4,697.21 and 2,077.87 is: 2,867.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,403.40 : 4,697.21 = 2,077.87 : x
  2. Step 2: Convert to fraction form
    3,403.40/4,697.21 = 2,077.87/x
  3. Step 3: Cross multiply
    3,403.40x = 4,697.21 × 2,077.87
  4. Step 4: Simplify right side
    3,403.40x = 9,760,191.74
  5. Step 5: Solve for x
    x = 9,760,191.74/3,403.40
  6. Step 6: Final answer
    x = 2,867.78

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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.