Home / 3,859.98-5,328.36-2,445.72

Finding the Fourth Proportional to 3,859.98, 5,328.36 and 2,445.72

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Solution

The fourth proportional to 3,859.98, 5,328.36 and 2,445.72 is: 3,376.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,859.98 : 5,328.36 = 2,445.72 : x
  2. Step 2: Convert to fraction form
    3,859.98/5,328.36 = 2,445.72/x
  3. Step 3: Cross multiply
    3,859.98x = 5,328.36 × 2,445.72
  4. Step 4: Simplify right side
    3,859.98x = 13,031,676.62
  5. Step 5: Solve for x
    x = 13,031,676.62/3,859.98
  6. Step 6: Final answer
    x = 3,376.10

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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.