Home / 7,038.12-10,561.68-2,881.56

Finding the Fourth Proportional to 7,038.12, 10,561.68 and 2,881.56

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Solution

The fourth proportional to 7,038.12, 10,561.68 and 2,881.56 is: 4,324.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,038.12 : 10,561.68 = 2,881.56 : x
  2. Step 2: Convert to fraction form
    7,038.12/10,561.68 = 2,881.56/x
  3. Step 3: Cross multiply
    7,038.12x = 10,561.68 × 2,881.56
  4. Step 4: Simplify right side
    7,038.12x = 30,434,114.62
  5. Step 5: Solve for x
    x = 30,434,114.62/7,038.12
  6. Step 6: Final answer
    x = 4,324.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.