Home / 3,459.40-4,777.86-2,285.80

Finding the Fourth Proportional to 3,459.40, 4,777.86 and 2,285.80

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Solution

The fourth proportional to 3,459.40, 4,777.86 and 2,285.80 is: 3,156.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,459.40 : 4,777.86 = 2,285.80 : x
  2. Step 2: Convert to fraction form
    3,459.40/4,777.86 = 2,285.80/x
  3. Step 3: Cross multiply
    3,459.40x = 4,777.86 × 2,285.80
  4. Step 4: Simplify right side
    3,459.40x = 10,921,232.39
  5. Step 5: Solve for x
    x = 10,921,232.39/3,459.40
  6. Step 6: Final answer
    x = 3,156.97

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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.