Home / 1,025.80-1,415.73-583.78

Finding the Fourth Proportional to 1,025.80, 1,415.73 and 583.78

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Solution

The fourth proportional to 1,025.80, 1,415.73 and 583.78 is: 805.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025.80 : 1,415.73 = 583.78 : x
  2. Step 2: Convert to fraction form
    1,025.80/1,415.73 = 583.78/x
  3. Step 3: Cross multiply
    1,025.80x = 1,415.73 × 583.78
  4. Step 4: Simplify right side
    1,025.80x = 826,471.94
  5. Step 5: Solve for x
    x = 826,471.94/1,025.80
  6. Step 6: Final answer
    x = 805.69

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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.