Home / 5,166.36-7,129.88-2,928.33

Finding the Fourth Proportional to 5,166.36, 7,129.88 and 2,928.33

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Solution

The fourth proportional to 5,166.36, 7,129.88 and 2,928.33 is: 4,041.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,166.36 : 7,129.88 = 2,928.33 : x
  2. Step 2: Convert to fraction form
    5,166.36/7,129.88 = 2,928.33/x
  3. Step 3: Cross multiply
    5,166.36x = 7,129.88 × 2,928.33
  4. Step 4: Simplify right side
    5,166.36x = 20,878,641.50
  5. Step 5: Solve for x
    x = 20,878,641.50/5,166.36
  6. Step 6: Final answer
    x = 4,041.27

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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.