Home / 2,126.89-2,934.29-1,568.68

Finding the Fourth Proportional to 2,126.89, 2,934.29 and 1,568.68

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Solution

The fourth proportional to 2,126.89, 2,934.29 and 1,568.68 is: 2,164.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.89 : 2,934.29 = 1,568.68 : x
  2. Step 2: Convert to fraction form
    2,126.89/2,934.29 = 1,568.68/x
  3. Step 3: Cross multiply
    2,126.89x = 2,934.29 × 1,568.68
  4. Step 4: Simplify right side
    2,126.89x = 4,602,965.45
  5. Step 5: Solve for x
    x = 4,602,965.45/2,126.89
  6. Step 6: Final answer
    x = 2,164.18

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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.