Home / 2,904.75-4,005.84-2,240.55

Finding the Fourth Proportional to 2,904.75, 4,005.84 and 2,240.55

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Solution

The fourth proportional to 2,904.75, 4,005.84 and 2,240.55 is: 3,089.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,904.75 : 4,005.84 = 2,240.55 : x
  2. Step 2: Convert to fraction form
    2,904.75/4,005.84 = 2,240.55/x
  3. Step 3: Cross multiply
    2,904.75x = 4,005.84 × 2,240.55
  4. Step 4: Simplify right side
    2,904.75x = 8,975,284.81
  5. Step 5: Solve for x
    x = 8,975,284.81/2,904.75
  6. Step 6: Final answer
    x = 3,089.86

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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.