Home / 6,268.77-8,643.87-4,280.40

Finding the Fourth Proportional to 6,268.77, 8,643.87 and 4,280.40

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Solution

The fourth proportional to 6,268.77, 8,643.87 and 4,280.40 is: 5,902.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,268.77 : 8,643.87 = 4,280.40 : x
  2. Step 2: Convert to fraction form
    6,268.77/8,643.87 = 4,280.40/x
  3. Step 3: Cross multiply
    6,268.77x = 8,643.87 × 4,280.40
  4. Step 4: Simplify right side
    6,268.77x = 36,999,221.15
  5. Step 5: Solve for x
    x = 36,999,221.15/6,268.77
  6. Step 6: Final answer
    x = 5,902.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.