Home / 6,915.60-10,365.64-2,754.50

Finding the Fourth Proportional to 6,915.60, 10,365.64 and 2,754.50

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Solution

The fourth proportional to 6,915.60, 10,365.64 and 2,754.50 is: 4,128.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,915.60 : 10,365.64 = 2,754.50 : x
  2. Step 2: Convert to fraction form
    6,915.60/10,365.64 = 2,754.50/x
  3. Step 3: Cross multiply
    6,915.60x = 10,365.64 × 2,754.50
  4. Step 4: Simplify right side
    6,915.60x = 28,552,096.67
  5. Step 5: Solve for x
    x = 28,552,096.67/6,915.60
  6. Step 6: Final answer
    x = 4,128.65

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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.