Home / 3,061.90-4,225.30-1,664.65

Finding the Fourth Proportional to 3,061.90, 4,225.30 and 1,664.65

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Solution

The fourth proportional to 3,061.90, 4,225.30 and 1,664.65 is: 2,297.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,061.90 : 4,225.30 = 1,664.65 : x
  2. Step 2: Convert to fraction form
    3,061.90/4,225.30 = 1,664.65/x
  3. Step 3: Cross multiply
    3,061.90x = 4,225.30 × 1,664.65
  4. Step 4: Simplify right side
    3,061.90x = 7,033,645.65
  5. Step 5: Solve for x
    x = 7,033,645.65/3,061.90
  6. Step 6: Final answer
    x = 2,297.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.