Home / 5,513.40-7,608.36-3,155.39

Finding the Fourth Proportional to 5,513.40, 7,608.36 and 3,155.39

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Solution

The fourth proportional to 5,513.40, 7,608.36 and 3,155.39 is: 4,354.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,513.40 : 7,608.36 = 3,155.39 : x
  2. Step 2: Convert to fraction form
    5,513.40/7,608.36 = 3,155.39/x
  3. Step 3: Cross multiply
    5,513.40x = 7,608.36 × 3,155.39
  4. Step 4: Simplify right side
    5,513.40x = 24,007,343.06
  5. Step 5: Solve for x
    x = 24,007,343.06/5,513.40
  6. Step 6: Final answer
    x = 4,354.36

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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.