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Finding the Fourth Proportional to 5,666.78, 8,500.23 and 1,969.40

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Solution

The fourth proportional to 5,666.78, 8,500.23 and 1,969.40 is: 2,954.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,666.78 : 8,500.23 = 1,969.40 : x
  2. Step 2: Convert to fraction form
    5,666.78/8,500.23 = 1,969.40/x
  3. Step 3: Cross multiply
    5,666.78x = 8,500.23 × 1,969.40
  4. Step 4: Simplify right side
    5,666.78x = 16,740,310.46
  5. Step 5: Solve for x
    x = 16,740,310.46/5,666.78
  6. Step 6: Final answer
    x = 2,954.12

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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.