Home / 2,072.78-2,859.27-1,364.66

Finding the Fourth Proportional to 2,072.78, 2,859.27 and 1,364.66

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Solution

The fourth proportional to 2,072.78, 2,859.27 and 1,364.66 is: 1,882.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,072.78 : 2,859.27 = 1,364.66 : x
  2. Step 2: Convert to fraction form
    2,072.78/2,859.27 = 1,364.66/x
  3. Step 3: Cross multiply
    2,072.78x = 2,859.27 × 1,364.66
  4. Step 4: Simplify right side
    2,072.78x = 3,901,931.40
  5. Step 5: Solve for x
    x = 3,901,931.40/2,072.78
  6. Step 6: Final answer
    x = 1,882.46

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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.