Home / 1,022.19-1,401.41-1,003.74

Finding the Fourth Proportional to 1,022.19, 1,401.41 and 1,003.74

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Solution

The fourth proportional to 1,022.19, 1,401.41 and 1,003.74 is: 1,376.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,022.19 : 1,401.41 = 1,003.74 : x
  2. Step 2: Convert to fraction form
    1,022.19/1,401.41 = 1,003.74/x
  3. Step 3: Cross multiply
    1,022.19x = 1,401.41 × 1,003.74
  4. Step 4: Simplify right side
    1,022.19x = 1,406,639.25
  5. Step 5: Solve for x
    x = 1,406,639.25/1,022.19
  6. Step 6: Final answer
    x = 1,376.10

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.