Home / 3,124.84-4,308.32-2,003.76

Finding the Fourth Proportional to 3,124.84, 4,308.32 and 2,003.76

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Solution

The fourth proportional to 3,124.84, 4,308.32 and 2,003.76 is: 2,762.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.84 : 4,308.32 = 2,003.76 : x
  2. Step 2: Convert to fraction form
    3,124.84/4,308.32 = 2,003.76/x
  3. Step 3: Cross multiply
    3,124.84x = 4,308.32 × 2,003.76
  4. Step 4: Simplify right side
    3,124.84x = 8,632,839.28
  5. Step 5: Solve for x
    x = 8,632,839.28/3,124.84
  6. Step 6: Final answer
    x = 2,762.65

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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.