Home / 5,111.79-7,054.24-2,903.79

Finding the Fourth Proportional to 5,111.79, 7,054.24 and 2,903.79

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Solution

The fourth proportional to 5,111.79, 7,054.24 and 2,903.79 is: 4,007.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,111.79 : 7,054.24 = 2,903.79 : x
  2. Step 2: Convert to fraction form
    5,111.79/7,054.24 = 2,903.79/x
  3. Step 3: Cross multiply
    5,111.79x = 7,054.24 × 2,903.79
  4. Step 4: Simplify right side
    5,111.79x = 20,484,017.05
  5. Step 5: Solve for x
    x = 20,484,017.05/5,111.79
  6. Step 6: Final answer
    x = 4,007.21

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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.