Home / 2,805.28-3,870.99-1,626.58

Finding the Fourth Proportional to 2,805.28, 3,870.99 and 1,626.58

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Solution

The fourth proportional to 2,805.28, 3,870.99 and 1,626.58 is: 2,244.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,805.28 : 3,870.99 = 1,626.58 : x
  2. Step 2: Convert to fraction form
    2,805.28/3,870.99 = 1,626.58/x
  3. Step 3: Cross multiply
    2,805.28x = 3,870.99 × 1,626.58
  4. Step 4: Simplify right side
    2,805.28x = 6,296,479.75
  5. Step 5: Solve for x
    x = 6,296,479.75/2,805.28
  6. Step 6: Final answer
    x = 2,244.51

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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.