Home / 1,810.24-2,715.28-836.30

Finding the Fourth Proportional to 1,810.24, 2,715.28 and 836.30

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Solution

The fourth proportional to 1,810.24, 2,715.28 and 836.30 is: 1,254.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,810.24 : 2,715.28 = 836.30 : x
  2. Step 2: Convert to fraction form
    1,810.24/2,715.28 = 836.30/x
  3. Step 3: Cross multiply
    1,810.24x = 2,715.28 × 836.30
  4. Step 4: Simplify right side
    1,810.24x = 2,270,788.66
  5. Step 5: Solve for x
    x = 2,270,788.66/1,810.24
  6. Step 6: Final answer
    x = 1,254.41

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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.