Home / 4,272.18-6,400.96-2,320.88

Finding the Fourth Proportional to 4,272.18, 6,400.96 and 2,320.88

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Solution

The fourth proportional to 4,272.18, 6,400.96 and 2,320.88 is: 3,477.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,272.18 : 6,400.96 = 2,320.88 : x
  2. Step 2: Convert to fraction form
    4,272.18/6,400.96 = 2,320.88/x
  3. Step 3: Cross multiply
    4,272.18x = 6,400.96 × 2,320.88
  4. Step 4: Simplify right side
    4,272.18x = 14,855,860.04
  5. Step 5: Solve for x
    x = 14,855,860.04/4,272.18
  6. Step 6: Final answer
    x = 3,477.35

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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.