Home / 7,614.42-11,421.63-2,871.48

Finding the Fourth Proportional to 7,614.42, 11,421.63 and 2,871.48

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Solution

The fourth proportional to 7,614.42, 11,421.63 and 2,871.48 is: 4,307.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,614.42 : 11,421.63 = 2,871.48 : x
  2. Step 2: Convert to fraction form
    7,614.42/11,421.63 = 2,871.48/x
  3. Step 3: Cross multiply
    7,614.42x = 11,421.63 × 2,871.48
  4. Step 4: Simplify right side
    7,614.42x = 32,796,982.11
  5. Step 5: Solve for x
    x = 32,796,982.11/7,614.42
  6. Step 6: Final answer
    x = 4,307.22

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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.