Home / 7,189.36-10,787.60-3,243.36

Finding the Fourth Proportional to 7,189.36, 10,787.60 and 3,243.36

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Solution

The fourth proportional to 7,189.36, 10,787.60 and 3,243.36 is: 4,866.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,189.36 : 10,787.60 = 3,243.36 : x
  2. Step 2: Convert to fraction form
    7,189.36/10,787.60 = 3,243.36/x
  3. Step 3: Cross multiply
    7,189.36x = 10,787.60 × 3,243.36
  4. Step 4: Simplify right side
    7,189.36x = 34,988,070.34
  5. Step 5: Solve for x
    x = 34,988,070.34/7,189.36
  6. Step 6: Final answer
    x = 4,866.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.