Home / 6,972.38-9,621.95-3,828.63

Finding the Fourth Proportional to 6,972.38, 9,621.95 and 3,828.63

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Solution

The fourth proportional to 6,972.38, 9,621.95 and 3,828.63 is: 5,283.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,972.38 : 9,621.95 = 3,828.63 : x
  2. Step 2: Convert to fraction form
    6,972.38/9,621.95 = 3,828.63/x
  3. Step 3: Cross multiply
    6,972.38x = 9,621.95 × 3,828.63
  4. Step 4: Simplify right side
    6,972.38x = 36,838,867.29
  5. Step 5: Solve for x
    x = 36,838,867.29/6,972.38
  6. Step 6: Final answer
    x = 5,283.55

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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.