Home / 2,808.08-4,206.48-1,398.25

Finding the Fourth Proportional to 2,808.08, 4,206.48 and 1,398.25

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Solution

The fourth proportional to 2,808.08, 4,206.48 and 1,398.25 is: 2,094.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,808.08 : 4,206.48 = 1,398.25 : x
  2. Step 2: Convert to fraction form
    2,808.08/4,206.48 = 1,398.25/x
  3. Step 3: Cross multiply
    2,808.08x = 4,206.48 × 1,398.25
  4. Step 4: Simplify right side
    2,808.08x = 5,881,700.14
  5. Step 5: Solve for x
    x = 5,881,700.14/2,808.08
  6. Step 6: Final answer
    x = 2,094.56

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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.