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Finding the Fourth Proportional to 5,784.80, 8,676.16 and 1,889.19

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Solution

The fourth proportional to 5,784.80, 8,676.16 and 1,889.19 is: 2,833.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,784.80 : 8,676.16 = 1,889.19 : x
  2. Step 2: Convert to fraction form
    5,784.80/8,676.16 = 1,889.19/x
  3. Step 3: Cross multiply
    5,784.80x = 8,676.16 × 1,889.19
  4. Step 4: Simplify right side
    5,784.80x = 16,390,909.99
  5. Step 5: Solve for x
    x = 16,390,909.99/5,784.80
  6. Step 6: Final answer
    x = 2,833.45

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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.