Home / 2,840.81-3,915.68-2,334.83

Finding the Fourth Proportional to 2,840.81, 3,915.68 and 2,334.83

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Solution

The fourth proportional to 2,840.81, 3,915.68 and 2,334.83 is: 3,218.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,840.81 : 3,915.68 = 2,334.83 : x
  2. Step 2: Convert to fraction form
    2,840.81/3,915.68 = 2,334.83/x
  3. Step 3: Cross multiply
    2,840.81x = 3,915.68 × 2,334.83
  4. Step 4: Simplify right side
    2,840.81x = 9,142,415.88
  5. Step 5: Solve for x
    x = 9,142,415.88/2,840.81
  6. Step 6: Final answer
    x = 3,218.25

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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.