Home / 7,915.46-10,922.45-4,557.60

Finding the Fourth Proportional to 7,915.46, 10,922.45 and 4,557.60

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Solution

The fourth proportional to 7,915.46, 10,922.45 and 4,557.60 is: 6,288.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,915.46 : 10,922.45 = 4,557.60 : x
  2. Step 2: Convert to fraction form
    7,915.46/10,922.45 = 4,557.60/x
  3. Step 3: Cross multiply
    7,915.46x = 10,922.45 × 4,557.60
  4. Step 4: Simplify right side
    7,915.46x = 49,780,135.33
  5. Step 5: Solve for x
    x = 49,780,135.33/7,915.46
  6. Step 6: Final answer
    x = 6,288.98

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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.