Home / 1,020.55-1,521.68-1,019.14

Finding the Fourth Proportional to 1,020.55, 1,521.68 and 1,019.14

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Solution

The fourth proportional to 1,020.55, 1,521.68 and 1,019.14 is: 1,519.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020.55 : 1,521.68 = 1,019.14 : x
  2. Step 2: Convert to fraction form
    1,020.55/1,521.68 = 1,019.14/x
  3. Step 3: Cross multiply
    1,020.55x = 1,521.68 × 1,019.14
  4. Step 4: Simplify right side
    1,020.55x = 1,550,804.96
  5. Step 5: Solve for x
    x = 1,550,804.96/1,020.55
  6. Step 6: Final answer
    x = 1,519.58

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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.