Home / 3,721.65-5,582.30-1,641.09

Finding the Fourth Proportional to 3,721.65, 5,582.30 and 1,641.09

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Solution

The fourth proportional to 3,721.65, 5,582.30 and 1,641.09 is: 2,461.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.65 : 5,582.30 = 1,641.09 : x
  2. Step 2: Convert to fraction form
    3,721.65/5,582.30 = 1,641.09/x
  3. Step 3: Cross multiply
    3,721.65x = 5,582.30 × 1,641.09
  4. Step 4: Simplify right side
    3,721.65x = 9,161,048.50
  5. Step 5: Solve for x
    x = 9,161,048.50/3,721.65
  6. Step 6: Final answer
    x = 2,461.56

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1.5x scale

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.