Home / 5,429.76-8,145.64-2,468.40

Finding the Fourth Proportional to 5,429.76, 8,145.64 and 2,468.40

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Solution

The fourth proportional to 5,429.76, 8,145.64 and 2,468.40 is: 3,703.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429.76 : 8,145.64 = 2,468.40 : x
  2. Step 2: Convert to fraction form
    5,429.76/8,145.64 = 2,468.40/x
  3. Step 3: Cross multiply
    5,429.76x = 8,145.64 × 2,468.40
  4. Step 4: Simplify right side
    5,429.76x = 20,106,697.78
  5. Step 5: Solve for x
    x = 20,106,697.78/5,429.76
  6. Step 6: Final answer
    x = 3,703.05

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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.