Home / 5,459.17-8,188.77-2,172.25

Finding the Fourth Proportional to 5,459.17, 8,188.77 and 2,172.25

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Solution

The fourth proportional to 5,459.17, 8,188.77 and 2,172.25 is: 3,258.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,459.17 : 8,188.77 = 2,172.25 : x
  2. Step 2: Convert to fraction form
    5,459.17/8,188.77 = 2,172.25/x
  3. Step 3: Cross multiply
    5,459.17x = 8,188.77 × 2,172.25
  4. Step 4: Simplify right side
    5,459.17x = 17,788,055.63
  5. Step 5: Solve for x
    x = 17,788,055.63/5,459.17
  6. Step 6: Final answer
    x = 3,258.38

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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.