Home / 4,688.23-7,029.68-1,911.65

Finding the Fourth Proportional to 4,688.23, 7,029.68 and 1,911.65

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Solution

The fourth proportional to 4,688.23, 7,029.68 and 1,911.65 is: 2,866.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,688.23 : 7,029.68 = 1,911.65 : x
  2. Step 2: Convert to fraction form
    4,688.23/7,029.68 = 1,911.65/x
  3. Step 3: Cross multiply
    4,688.23x = 7,029.68 × 1,911.65
  4. Step 4: Simplify right side
    4,688.23x = 13,438,287.77
  5. Step 5: Solve for x
    x = 13,438,287.77/4,688.23
  6. Step 6: Final answer
    x = 2,866.39

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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.