Home / 3,915.15-5,401.08-2,572.19

Finding the Fourth Proportional to 3,915.15, 5,401.08 and 2,572.19

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Solution

The fourth proportional to 3,915.15, 5,401.08 and 2,572.19 is: 3,548.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,915.15 : 5,401.08 = 2,572.19 : x
  2. Step 2: Convert to fraction form
    3,915.15/5,401.08 = 2,572.19/x
  3. Step 3: Cross multiply
    3,915.15x = 5,401.08 × 2,572.19
  4. Step 4: Simplify right side
    3,915.15x = 13,892,597.21
  5. Step 5: Solve for x
    x = 13,892,597.21/3,915.15
  6. Step 6: Final answer
    x = 3,548.42

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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.