Home / 4,280.04-6,420.06-2,199.72

Finding the Fourth Proportional to 4,280.04, 6,420.06 and 2,199.72

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Solution

The fourth proportional to 4,280.04, 6,420.06 and 2,199.72 is: 3,299.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,280.04 : 6,420.06 = 2,199.72 : x
  2. Step 2: Convert to fraction form
    4,280.04/6,420.06 = 2,199.72/x
  3. Step 3: Cross multiply
    4,280.04x = 6,420.06 × 2,199.72
  4. Step 4: Simplify right side
    4,280.04x = 14,122,334.38
  5. Step 5: Solve for x
    x = 14,122,334.38/4,280.04
  6. Step 6: Final answer
    x = 3,299.58

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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.