Home / 4,915.50-7,374.46-1,628.92

Finding the Fourth Proportional to 4,915.50, 7,374.46 and 1,628.92

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Solution

The fourth proportional to 4,915.50, 7,374.46 and 1,628.92 is: 2,443.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,915.50 : 7,374.46 = 1,628.92 : x
  2. Step 2: Convert to fraction form
    4,915.50/7,374.46 = 1,628.92/x
  3. Step 3: Cross multiply
    4,915.50x = 7,374.46 × 1,628.92
  4. Step 4: Simplify right side
    4,915.50x = 12,012,405.38
  5. Step 5: Solve for x
    x = 12,012,405.38/4,915.50
  6. Step 6: Final answer
    x = 2,443.78

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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.