Home / 1,356.83-2,037.97-810.08

Finding the Fourth Proportional to 1,356.83, 2,037.97 and 810.08

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Solution

The fourth proportional to 1,356.83, 2,037.97 and 810.08 is: 1,216.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,356.83 : 2,037.97 = 810.08 : x
  2. Step 2: Convert to fraction form
    1,356.83/2,037.97 = 810.08/x
  3. Step 3: Cross multiply
    1,356.83x = 2,037.97 × 810.08
  4. Step 4: Simplify right side
    1,356.83x = 1,650,908.55
  5. Step 5: Solve for x
    x = 1,650,908.55/1,356.83
  6. Step 6: Final answer
    x = 1,216.74

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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.