Home / 4,084.67-5,630.81-3,187.40

Finding the Fourth Proportional to 4,084.67, 5,630.81 and 3,187.40

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Solution

The fourth proportional to 4,084.67, 5,630.81 and 3,187.40 is: 4,393.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,084.67 : 5,630.81 = 3,187.40 : x
  2. Step 2: Convert to fraction form
    4,084.67/5,630.81 = 3,187.40/x
  3. Step 3: Cross multiply
    4,084.67x = 5,630.81 × 3,187.40
  4. Step 4: Simplify right side
    4,084.67x = 17,947,599.70
  5. Step 5: Solve for x
    x = 17,947,599.70/4,084.67
  6. Step 6: Final answer
    x = 4,393.89

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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.