Home / 2,126.57-2,935.73-1,330.34

Finding the Fourth Proportional to 2,126.57, 2,935.73 and 1,330.34

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Solution

The fourth proportional to 2,126.57, 2,935.73 and 1,330.34 is: 1,836.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.57 : 2,935.73 = 1,330.34 : x
  2. Step 2: Convert to fraction form
    2,126.57/2,935.73 = 1,330.34/x
  3. Step 3: Cross multiply
    2,126.57x = 2,935.73 × 1,330.34
  4. Step 4: Simplify right side
    2,126.57x = 3,905,519.05
  5. Step 5: Solve for x
    x = 3,905,519.05/2,126.57
  6. Step 6: Final answer
    x = 1,836.53

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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.