Home / 5,142.75-7,097.33-2,903.81

Finding the Fourth Proportional to 5,142.75, 7,097.33 and 2,903.81

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Solution

The fourth proportional to 5,142.75, 7,097.33 and 2,903.81 is: 4,007.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,142.75 : 7,097.33 = 2,903.81 : x
  2. Step 2: Convert to fraction form
    5,142.75/7,097.33 = 2,903.81/x
  3. Step 3: Cross multiply
    5,142.75x = 7,097.33 × 2,903.81
  4. Step 4: Simplify right side
    5,142.75x = 20,609,305.21
  5. Step 5: Solve for x
    x = 20,609,305.21/5,142.75
  6. Step 6: Final answer
    x = 4,007.45

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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.