Home / 2,788.46-3,847.70-1,669.17

Finding the Fourth Proportional to 2,788.46, 3,847.70 and 1,669.17

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Solution

The fourth proportional to 2,788.46, 3,847.70 and 1,669.17 is: 2,303.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.46 : 3,847.70 = 1,669.17 : x
  2. Step 2: Convert to fraction form
    2,788.46/3,847.70 = 1,669.17/x
  3. Step 3: Cross multiply
    2,788.46x = 3,847.70 × 1,669.17
  4. Step 4: Simplify right side
    2,788.46x = 6,422,484.01
  5. Step 5: Solve for x
    x = 6,422,484.01/2,788.46
  6. Step 6: Final answer
    x = 2,303.24

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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.