Home / 4,885.40-7,328.45-1,963.71

Finding the Fourth Proportional to 4,885.40, 7,328.45 and 1,963.71

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Solution

The fourth proportional to 4,885.40, 7,328.45 and 1,963.71 is: 2,945.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,885.40 : 7,328.45 = 1,963.71 : x
  2. Step 2: Convert to fraction form
    4,885.40/7,328.45 = 1,963.71/x
  3. Step 3: Cross multiply
    4,885.40x = 7,328.45 × 1,963.71
  4. Step 4: Simplify right side
    4,885.40x = 14,390,940.73
  5. Step 5: Solve for x
    x = 14,390,940.73/4,885.40
  6. Step 6: Final answer
    x = 2,945.70

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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.