Home / 4,885.20-7,328.88-2,421.36

Finding the Fourth Proportional to 4,885.20, 7,328.88 and 2,421.36

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Solution

The fourth proportional to 4,885.20, 7,328.88 and 2,421.36 is: 3,632.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,885.20 : 7,328.88 = 2,421.36 : x
  2. Step 2: Convert to fraction form
    4,885.20/7,328.88 = 2,421.36/x
  3. Step 3: Cross multiply
    4,885.20x = 7,328.88 × 2,421.36
  4. Step 4: Simplify right side
    4,885.20x = 17,745,856.88
  5. Step 5: Solve for x
    x = 17,745,856.88/4,885.20
  6. Step 6: Final answer
    x = 3,632.58

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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.