Home / 6,551.28-9,039.36-3,898.17

Finding the Fourth Proportional to 6,551.28, 9,039.36 and 3,898.17

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Solution

The fourth proportional to 6,551.28, 9,039.36 and 3,898.17 is: 5,378.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,551.28 : 9,039.36 = 3,898.17 : x
  2. Step 2: Convert to fraction form
    6,551.28/9,039.36 = 3,898.17/x
  3. Step 3: Cross multiply
    6,551.28x = 9,039.36 × 3,898.17
  4. Step 4: Simplify right side
    6,551.28x = 35,236,897.28
  5. Step 5: Solve for x
    x = 35,236,897.28/6,551.28
  6. Step 6: Final answer
    x = 5,378.63

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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.