Home / 5,231.12-7,846.70-1,335.40

Finding the Fourth Proportional to 5,231.12, 7,846.70 and 1,335.40

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Solution

The fourth proportional to 5,231.12, 7,846.70 and 1,335.40 is: 2,003.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,231.12 : 7,846.70 = 1,335.40 : x
  2. Step 2: Convert to fraction form
    5,231.12/7,846.70 = 1,335.40/x
  3. Step 3: Cross multiply
    5,231.12x = 7,846.70 × 1,335.40
  4. Step 4: Simplify right side
    5,231.12x = 10,478,483.18
  5. Step 5: Solve for x
    x = 10,478,483.18/5,231.12
  6. Step 6: Final answer
    x = 2,003.11

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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.