Home / 3,486.32-5,239.80-2,320.28

Finding the Fourth Proportional to 3,486.32, 5,239.80 and 2,320.28

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Solution

The fourth proportional to 3,486.32, 5,239.80 and 2,320.28 is: 3,487.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,486.32 : 5,239.80 = 2,320.28 : x
  2. Step 2: Convert to fraction form
    3,486.32/5,239.80 = 2,320.28/x
  3. Step 3: Cross multiply
    3,486.32x = 5,239.80 × 2,320.28
  4. Step 4: Simplify right side
    3,486.32x = 12,157,803.14
  5. Step 5: Solve for x
    x = 12,157,803.14/3,486.32
  6. Step 6: Final answer
    x = 3,487.29

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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.