Home / 4,420.12-6,630.20-1,788.80

Finding the Fourth Proportional to 4,420.12, 6,630.20 and 1,788.80

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Solution

The fourth proportional to 4,420.12, 6,630.20 and 1,788.80 is: 2,683.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,420.12 : 6,630.20 = 1,788.80 : x
  2. Step 2: Convert to fraction form
    4,420.12/6,630.20 = 1,788.80/x
  3. Step 3: Cross multiply
    4,420.12x = 6,630.20 × 1,788.80
  4. Step 4: Simplify right side
    4,420.12x = 11,860,101.76
  5. Step 5: Solve for x
    x = 11,860,101.76/4,420.12
  6. Step 6: Final answer
    x = 2,683.21

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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.