Home / 4,886.88-7,328.32-2,420.80

Finding the Fourth Proportional to 4,886.88, 7,328.32 and 2,420.80

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Solution

The fourth proportional to 4,886.88, 7,328.32 and 2,420.80 is: 3,630.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,886.88 : 7,328.32 = 2,420.80 : x
  2. Step 2: Convert to fraction form
    4,886.88/7,328.32 = 2,420.80/x
  3. Step 3: Cross multiply
    4,886.88x = 7,328.32 × 2,420.80
  4. Step 4: Simplify right side
    4,886.88x = 17,740,397.06
  5. Step 5: Solve for x
    x = 17,740,397.06/4,886.88
  6. Step 6: Final answer
    x = 3,630.21

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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.