Home / 7,272.15-10,915.05-3,577.05

Finding the Fourth Proportional to 7,272.15, 10,915.05 and 3,577.05

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Solution

The fourth proportional to 7,272.15, 10,915.05 and 3,577.05 is: 5,368.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,272.15 : 10,915.05 = 3,577.05 : x
  2. Step 2: Convert to fraction form
    7,272.15/10,915.05 = 3,577.05/x
  3. Step 3: Cross multiply
    7,272.15x = 10,915.05 × 3,577.05
  4. Step 4: Simplify right side
    7,272.15x = 39,043,679.60
  5. Step 5: Solve for x
    x = 39,043,679.60/7,272.15
  6. Step 6: Final answer
    x = 5,368.93

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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.