Home / 6,989.28-9,645.60-4,006.02

Finding the Fourth Proportional to 6,989.28, 9,645.60 and 4,006.02

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Solution

The fourth proportional to 6,989.28, 9,645.60 and 4,006.02 is: 5,528.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,989.28 : 9,645.60 = 4,006.02 : x
  2. Step 2: Convert to fraction form
    6,989.28/9,645.60 = 4,006.02/x
  3. Step 3: Cross multiply
    6,989.28x = 9,645.60 × 4,006.02
  4. Step 4: Simplify right side
    6,989.28x = 38,640,466.51
  5. Step 5: Solve for x
    x = 38,640,466.51/6,989.28
  6. Step 6: Final answer
    x = 5,528.53

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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.