Home / 4,280.96-6,390.76-4,091.84

Finding the Fourth Proportional to 4,280.96, 6,390.76 and 4,091.84

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Solution

The fourth proportional to 4,280.96, 6,390.76 and 4,091.84 is: 6,108.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,280.96 : 6,390.76 = 4,091.84 : x
  2. Step 2: Convert to fraction form
    4,280.96/6,390.76 = 4,091.84/x
  3. Step 3: Cross multiply
    4,280.96x = 6,390.76 × 4,091.84
  4. Step 4: Simplify right side
    4,280.96x = 26,149,967.40
  5. Step 5: Solve for x
    x = 26,149,967.40/4,280.96
  6. Step 6: Final answer
    x = 6,108.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.