Home / 7,614.89-11,421.92-2,420.36

Finding the Fourth Proportional to 7,614.89, 11,421.92 and 2,420.36

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Solution

The fourth proportional to 7,614.89, 11,421.92 and 2,420.36 is: 3,630.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,614.89 : 11,421.92 = 2,420.36 : x
  2. Step 2: Convert to fraction form
    7,614.89/11,421.92 = 2,420.36/x
  3. Step 3: Cross multiply
    7,614.89x = 11,421.92 × 2,420.36
  4. Step 4: Simplify right side
    7,614.89x = 27,645,089.08
  5. Step 5: Solve for x
    x = 27,645,089.08/7,614.89
  6. Step 6: Final answer
    x = 3,630.40

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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.