Home / 5,402.40-7,456.05-3,165.17

Finding the Fourth Proportional to 5,402.40, 7,456.05 and 3,165.17

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Solution

The fourth proportional to 5,402.40, 7,456.05 and 3,165.17 is: 4,368.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,402.40 : 7,456.05 = 3,165.17 : x
  2. Step 2: Convert to fraction form
    5,402.40/7,456.05 = 3,165.17/x
  3. Step 3: Cross multiply
    5,402.40x = 7,456.05 × 3,165.17
  4. Step 4: Simplify right side
    5,402.40x = 23,599,655.18
  5. Step 5: Solve for x
    x = 23,599,655.18/5,402.40
  6. Step 6: Final answer
    x = 4,368.36

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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.