Home / 1,040.80-1,551.86-1,022.35

Finding the Fourth Proportional to 1,040.80, 1,551.86 and 1,022.35

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Solution

The fourth proportional to 1,040.80, 1,551.86 and 1,022.35 is: 1,524.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040.80 : 1,551.86 = 1,022.35 : x
  2. Step 2: Convert to fraction form
    1,040.80/1,551.86 = 1,022.35/x
  3. Step 3: Cross multiply
    1,040.80x = 1,551.86 × 1,022.35
  4. Step 4: Simplify right side
    1,040.80x = 1,586,537.46
  5. Step 5: Solve for x
    x = 1,586,537.46/1,040.80
  6. Step 6: Final answer
    x = 1,524.35

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.