Home / 2,808.61-4,213.10-1,165.29

Finding the Fourth Proportional to 2,808.61, 4,213.10 and 1,165.29

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Solution

The fourth proportional to 2,808.61, 4,213.10 and 1,165.29 is: 1,748.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,808.61 : 4,213.10 = 1,165.29 : x
  2. Step 2: Convert to fraction form
    2,808.61/4,213.10 = 1,165.29/x
  3. Step 3: Cross multiply
    2,808.61x = 4,213.10 × 1,165.29
  4. Step 4: Simplify right side
    2,808.61x = 4,909,486.21
  5. Step 5: Solve for x
    x = 4,909,486.21/2,808.61
  6. Step 6: Final answer
    x = 1,748.01

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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.