Home / 5,210.81-7,191.61-3,086.17

Finding the Fourth Proportional to 5,210.81, 7,191.61 and 3,086.17

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Solution

The fourth proportional to 5,210.81, 7,191.61 and 3,086.17 is: 4,259.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,210.81 : 7,191.61 = 3,086.17 : x
  2. Step 2: Convert to fraction form
    5,210.81/7,191.61 = 3,086.17/x
  3. Step 3: Cross multiply
    5,210.81x = 7,191.61 × 3,086.17
  4. Step 4: Simplify right side
    5,210.81x = 22,194,563.15
  5. Step 5: Solve for x
    x = 22,194,563.15/5,210.81
  6. Step 6: Final answer
    x = 4,259.33

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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.