Home / 5,556.20-8,320.80-2,953.40

Finding the Fourth Proportional to 5,556.20, 8,320.80 and 2,953.40

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Solution

The fourth proportional to 5,556.20, 8,320.80 and 2,953.40 is: 4,422.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,556.20 : 8,320.80 = 2,953.40 : x
  2. Step 2: Convert to fraction form
    5,556.20/8,320.80 = 2,953.40/x
  3. Step 3: Cross multiply
    5,556.20x = 8,320.80 × 2,953.40
  4. Step 4: Simplify right side
    5,556.20x = 24,574,650.72
  5. Step 5: Solve for x
    x = 24,574,650.72/5,556.20
  6. Step 6: Final answer
    x = 4,422.92

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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.