Home / 5,391.06-8,087.80-1,643.17

Finding the Fourth Proportional to 5,391.06, 8,087.80 and 1,643.17

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Solution

The fourth proportional to 5,391.06, 8,087.80 and 1,643.17 is: 2,465.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,391.06 : 8,087.80 = 1,643.17 : x
  2. Step 2: Convert to fraction form
    5,391.06/8,087.80 = 1,643.17/x
  3. Step 3: Cross multiply
    5,391.06x = 8,087.80 × 1,643.17
  4. Step 4: Simplify right side
    5,391.06x = 13,289,630.33
  5. Step 5: Solve for x
    x = 13,289,630.33/5,391.06
  6. Step 6: Final answer
    x = 2,465.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.