Home / 4,680.25-7,020.78-1,217.50

Finding the Fourth Proportional to 4,680.25, 7,020.78 and 1,217.50

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Solution

The fourth proportional to 4,680.25, 7,020.78 and 1,217.50 is: 1,826.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,680.25 : 7,020.78 = 1,217.50 : x
  2. Step 2: Convert to fraction form
    4,680.25/7,020.78 = 1,217.50/x
  3. Step 3: Cross multiply
    4,680.25x = 7,020.78 × 1,217.50
  4. Step 4: Simplify right side
    4,680.25x = 8,547,799.65
  5. Step 5: Solve for x
    x = 8,547,799.65/4,680.25
  6. Step 6: Final answer
    x = 1,826.36

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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.