Home / 2,580.16-3,870.74-1,020.89

Finding the Fourth Proportional to 2,580.16, 3,870.74 and 1,020.89

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Solution

The fourth proportional to 2,580.16, 3,870.74 and 1,020.89 is: 1,531.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,580.16 : 3,870.74 = 1,020.89 : x
  2. Step 2: Convert to fraction form
    2,580.16/3,870.74 = 1,020.89/x
  3. Step 3: Cross multiply
    2,580.16x = 3,870.74 × 1,020.89
  4. Step 4: Simplify right side
    2,580.16x = 3,951,594.65
  5. Step 5: Solve for x
    x = 3,951,594.65/2,580.16
  6. Step 6: Final answer
    x = 1,531.53

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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.