Home / 5,207.41-7,809.90-2,431.45

Finding the Fourth Proportional to 5,207.41, 7,809.90 and 2,431.45

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Solution

The fourth proportional to 5,207.41, 7,809.90 and 2,431.45 is: 3,646.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,207.41 : 7,809.90 = 2,431.45 : x
  2. Step 2: Convert to fraction form
    5,207.41/7,809.90 = 2,431.45/x
  3. Step 3: Cross multiply
    5,207.41x = 7,809.90 × 2,431.45
  4. Step 4: Simplify right side
    5,207.41x = 18,989,381.36
  5. Step 5: Solve for x
    x = 18,989,381.36/5,207.41
  6. Step 6: Final answer
    x = 3,646.61

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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.