Home / 5,646.20-8,455.80-3,043.40

Finding the Fourth Proportional to 5,646.20, 8,455.80 and 3,043.40

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Solution

The fourth proportional to 5,646.20, 8,455.80 and 3,043.40 is: 4,557.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,646.20 : 8,455.80 = 3,043.40 : x
  2. Step 2: Convert to fraction form
    5,646.20/8,455.80 = 3,043.40/x
  3. Step 3: Cross multiply
    5,646.20x = 8,455.80 × 3,043.40
  4. Step 4: Simplify right side
    5,646.20x = 25,734,381.72
  5. Step 5: Solve for x
    x = 25,734,381.72/5,646.20
  6. Step 6: Final answer
    x = 4,557.82

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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.