Home / 1,513.11-2,087.73-923.43

Finding the Fourth Proportional to 1,513.11, 2,087.73 and 923.43

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Solution

The fourth proportional to 1,513.11, 2,087.73 and 923.43 is: 1,274.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,513.11 : 2,087.73 = 923.43 : x
  2. Step 2: Convert to fraction form
    1,513.11/2,087.73 = 923.43/x
  3. Step 3: Cross multiply
    1,513.11x = 2,087.73 × 923.43
  4. Step 4: Simplify right side
    1,513.11x = 1,927,872.51
  5. Step 5: Solve for x
    x = 1,927,872.51/1,513.11
  6. Step 6: Final answer
    x = 1,274.11

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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.