Home / 1,935.34-2,669-1,439.22

Finding the Fourth Proportional to 1,935.34, 2,669 and 1,439.22

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Solution

The fourth proportional to 1,935.34, 2,669 and 1,439.22 is: 1,984.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935.34 : 2,669 = 1,439.22 : x
  2. Step 2: Convert to fraction form
    1,935.34/2,669 = 1,439.22/x
  3. Step 3: Cross multiply
    1,935.34x = 2,669 × 1,439.22
  4. Step 4: Simplify right side
    1,935.34x = 3,841,278.18
  5. Step 5: Solve for x
    x = 3,841,278.18/1,935.34
  6. Step 6: Final answer
    x = 1,984.81

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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.