Home / 4,280.34-6,421.50-1,815.26

Finding the Fourth Proportional to 4,280.34, 6,421.50 and 1,815.26

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Solution

The fourth proportional to 4,280.34, 6,421.50 and 1,815.26 is: 2,723.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,280.34 : 6,421.50 = 1,815.26 : x
  2. Step 2: Convert to fraction form
    4,280.34/6,421.50 = 1,815.26/x
  3. Step 3: Cross multiply
    4,280.34x = 6,421.50 × 1,815.26
  4. Step 4: Simplify right side
    4,280.34x = 11,656,650.91
  5. Step 5: Solve for x
    x = 11,656,650.91/4,280.34
  6. Step 6: Final answer
    x = 2,723.30

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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.