Home / 1,574.45-2,358.43-923.61

Finding the Fourth Proportional to 1,574.45, 2,358.43 and 923.61

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Solution

The fourth proportional to 1,574.45, 2,358.43 and 923.61 is: 1,383.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,574.45 : 2,358.43 = 923.61 : x
  2. Step 2: Convert to fraction form
    1,574.45/2,358.43 = 923.61/x
  3. Step 3: Cross multiply
    1,574.45x = 2,358.43 × 923.61
  4. Step 4: Simplify right side
    1,574.45x = 2,178,264.91
  5. Step 5: Solve for x
    x = 2,178,264.91/1,574.45
  6. Step 6: Final answer
    x = 1,383.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.