Home / 4,280.59-6,421.87-1,815.51

Finding the Fourth Proportional to 4,280.59, 6,421.87 and 1,815.51

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Solution

The fourth proportional to 4,280.59, 6,421.87 and 1,815.51 is: 2,723.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,280.59 : 6,421.87 = 1,815.51 : x
  2. Step 2: Convert to fraction form
    4,280.59/6,421.87 = 1,815.51/x
  3. Step 3: Cross multiply
    4,280.59x = 6,421.87 × 1,815.51
  4. Step 4: Simplify right side
    4,280.59x = 11,658,937.09
  5. Step 5: Solve for x
    x = 11,658,937.09/4,280.59
  6. Step 6: Final answer
    x = 2,723.68

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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.