Home / 3,609.72-4,985.51-2,428.74

Finding the Fourth Proportional to 3,609.72, 4,985.51 and 2,428.74

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Solution

The fourth proportional to 3,609.72, 4,985.51 and 2,428.74 is: 3,354.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,609.72 : 4,985.51 = 2,428.74 : x
  2. Step 2: Convert to fraction form
    3,609.72/4,985.51 = 2,428.74/x
  3. Step 3: Cross multiply
    3,609.72x = 4,985.51 × 2,428.74
  4. Step 4: Simplify right side
    3,609.72x = 12,108,507.56
  5. Step 5: Solve for x
    x = 12,108,507.56/3,609.72
  6. Step 6: Final answer
    x = 3,354.42

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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.