Home / 5,318.48-7,335.69-3,902.60

Finding the Fourth Proportional to 5,318.48, 7,335.69 and 3,902.60

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Solution

The fourth proportional to 5,318.48, 7,335.69 and 3,902.60 is: 5,382.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,318.48 : 7,335.69 = 3,902.60 : x
  2. Step 2: Convert to fraction form
    5,318.48/7,335.69 = 3,902.60/x
  3. Step 3: Cross multiply
    5,318.48x = 7,335.69 × 3,902.60
  4. Step 4: Simplify right side
    5,318.48x = 28,628,263.79
  5. Step 5: Solve for x
    x = 28,628,263.79/5,318.48
  6. Step 6: Final answer
    x = 5,382.79

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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.