Home / 4,019.79-5,550.25-2,903.21

Finding the Fourth Proportional to 4,019.79, 5,550.25 and 2,903.21

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Solution

The fourth proportional to 4,019.79, 5,550.25 and 2,903.21 is: 4,008.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,019.79 : 5,550.25 = 2,903.21 : x
  2. Step 2: Convert to fraction form
    4,019.79/5,550.25 = 2,903.21/x
  3. Step 3: Cross multiply
    4,019.79x = 5,550.25 × 2,903.21
  4. Step 4: Simplify right side
    4,019.79x = 16,113,541.30
  5. Step 5: Solve for x
    x = 16,113,541.30/4,019.79
  6. Step 6: Final answer
    x = 4,008.55

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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.