Home / 2,126.01-2,933.81-1,287.06

Finding the Fourth Proportional to 2,126.01, 2,933.81 and 1,287.06

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Solution

The fourth proportional to 2,126.01, 2,933.81 and 1,287.06 is: 1,776.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.01 : 2,933.81 = 1,287.06 : x
  2. Step 2: Convert to fraction form
    2,126.01/2,933.81 = 1,287.06/x
  3. Step 3: Cross multiply
    2,126.01x = 2,933.81 × 1,287.06
  4. Step 4: Simplify right side
    2,126.01x = 3,775,983.06
  5. Step 5: Solve for x
    x = 3,775,983.06/2,126.01
  6. Step 6: Final answer
    x = 1,776.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.