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Finding the Fourth Proportional to 2,884.70, 4,331.95 and 1,885.70

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Solution

The fourth proportional to 2,884.70, 4,331.95 and 1,885.70 is: 2,831.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,884.70 : 4,331.95 = 1,885.70 : x
  2. Step 2: Convert to fraction form
    2,884.70/4,331.95 = 1,885.70/x
  3. Step 3: Cross multiply
    2,884.70x = 4,331.95 × 1,885.70
  4. Step 4: Simplify right side
    2,884.70x = 8,168,764.23
  5. Step 5: Solve for x
    x = 8,168,764.23/2,884.70
  6. Step 6: Final answer
    x = 2,831.75

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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.