Home / 3,905.84-5,390.76-2,334.08

Finding the Fourth Proportional to 3,905.84, 5,390.76 and 2,334.08

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Solution

The fourth proportional to 3,905.84, 5,390.76 and 2,334.08 is: 3,221.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,905.84 : 5,390.76 = 2,334.08 : x
  2. Step 2: Convert to fraction form
    3,905.84/5,390.76 = 2,334.08/x
  3. Step 3: Cross multiply
    3,905.84x = 5,390.76 × 2,334.08
  4. Step 4: Simplify right side
    3,905.84x = 12,582,465.10
  5. Step 5: Solve for x
    x = 12,582,465.10/3,905.84
  6. Step 6: Final answer
    x = 3,221.45

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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.