Home / 1,395.17-2,094.29-810.83

Finding the Fourth Proportional to 1,395.17, 2,094.29 and 810.83

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Solution

The fourth proportional to 1,395.17, 2,094.29 and 810.83 is: 1,217.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395.17 : 2,094.29 = 810.83 : x
  2. Step 2: Convert to fraction form
    1,395.17/2,094.29 = 810.83/x
  3. Step 3: Cross multiply
    1,395.17x = 2,094.29 × 810.83
  4. Step 4: Simplify right side
    1,395.17x = 1,698,098.64
  5. Step 5: Solve for x
    x = 1,698,098.64/1,395.17
  6. Step 6: Final answer
    x = 1,217.13

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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.