Home / 2,126.43-2,935.83-1,370.55

Finding the Fourth Proportional to 2,126.43, 2,935.83 and 1,370.55

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Solution

The fourth proportional to 2,126.43, 2,935.83 and 1,370.55 is: 1,892.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.43 : 2,935.83 = 1,370.55 : x
  2. Step 2: Convert to fraction form
    2,126.43/2,935.83 = 1,370.55/x
  3. Step 3: Cross multiply
    2,126.43x = 2,935.83 × 1,370.55
  4. Step 4: Simplify right side
    2,126.43x = 4,023,701.81
  5. Step 5: Solve for x
    x = 4,023,701.81/2,126.43
  6. Step 6: Final answer
    x = 1,892.23

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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.