Home / 1,935.67-2,669.38-1,306.30

Finding the Fourth Proportional to 1,935.67, 2,669.38 and 1,306.30

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Solution

The fourth proportional to 1,935.67, 2,669.38 and 1,306.30 is: 1,801.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935.67 : 2,669.38 = 1,306.30 : x
  2. Step 2: Convert to fraction form
    1,935.67/2,669.38 = 1,306.30/x
  3. Step 3: Cross multiply
    1,935.67x = 2,669.38 × 1,306.30
  4. Step 4: Simplify right side
    1,935.67x = 3,487,011.09
  5. Step 5: Solve for x
    x = 3,487,011.09/1,935.67
  6. Step 6: Final answer
    x = 1,801.45

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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.