Home / 3,935.39-5,430.85-2,363.49

Finding the Fourth Proportional to 3,935.39, 5,430.85 and 2,363.49

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Solution

The fourth proportional to 3,935.39, 5,430.85 and 2,363.49 is: 3,261.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,935.39 : 5,430.85 = 2,363.49 : x
  2. Step 2: Convert to fraction form
    3,935.39/5,430.85 = 2,363.49/x
  3. Step 3: Cross multiply
    3,935.39x = 5,430.85 × 2,363.49
  4. Step 4: Simplify right side
    3,935.39x = 12,835,753.76
  5. Step 5: Solve for x
    x = 12,835,753.76/3,935.39
  6. Step 6: Final answer
    x = 3,261.63

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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.