Home / 4,280.22-6,420.33-4,207.32

Finding the Fourth Proportional to 4,280.22, 6,420.33 and 4,207.32

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Solution

The fourth proportional to 4,280.22, 6,420.33 and 4,207.32 is: 6,310.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,280.22 : 6,420.33 = 4,207.32 : x
  2. Step 2: Convert to fraction form
    4,280.22/6,420.33 = 4,207.32/x
  3. Step 3: Cross multiply
    4,280.22x = 6,420.33 × 4,207.32
  4. Step 4: Simplify right side
    4,280.22x = 27,012,382.82
  5. Step 5: Solve for x
    x = 27,012,382.82/4,280.22
  6. Step 6: Final answer
    x = 6,310.98

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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.