Home / 2,126.16-3,187.97-810.01

Finding the Fourth Proportional to 2,126.16, 3,187.97 and 810.01

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Solution

The fourth proportional to 2,126.16, 3,187.97 and 810.01 is: 1,214.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.16 : 3,187.97 = 810.01 : x
  2. Step 2: Convert to fraction form
    2,126.16/3,187.97 = 810.01/x
  3. Step 3: Cross multiply
    2,126.16x = 3,187.97 × 810.01
  4. Step 4: Simplify right side
    2,126.16x = 2,582,267.59
  5. Step 5: Solve for x
    x = 2,582,267.59/2,126.16
  6. Step 6: Final answer
    x = 1,214.52

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1.5x scale

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.