Home / 3,135.49-4,721.56-2,319.50

Finding the Fourth Proportional to 3,135.49, 4,721.56 and 2,319.50

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Solution

The fourth proportional to 3,135.49, 4,721.56 and 2,319.50 is: 3,492.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.49 : 4,721.56 = 2,319.50 : x
  2. Step 2: Convert to fraction form
    3,135.49/4,721.56 = 2,319.50/x
  3. Step 3: Cross multiply
    3,135.49x = 4,721.56 × 2,319.50
  4. Step 4: Simplify right side
    3,135.49x = 10,951,664.43
  5. Step 5: Solve for x
    x = 10,951,664.43/3,135.49
  6. Step 6: Final answer
    x = 3,492.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.