Home / 4,321.05-6,482.18-1,398.36

Finding the Fourth Proportional to 4,321.05, 6,482.18 and 1,398.36

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Solution

The fourth proportional to 4,321.05, 6,482.18 and 1,398.36 is: 2,097.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,321.05 : 6,482.18 = 1,398.36 : x
  2. Step 2: Convert to fraction form
    4,321.05/6,482.18 = 1,398.36/x
  3. Step 3: Cross multiply
    4,321.05x = 6,482.18 × 1,398.36
  4. Step 4: Simplify right side
    4,321.05x = 9,064,441.16
  5. Step 5: Solve for x
    x = 9,064,441.16/4,321.05
  6. Step 6: Final answer
    x = 2,097.74

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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.