Home / 3,210.27-4,815.87-1,455.87

Finding the Fourth Proportional to 3,210.27, 4,815.87 and 1,455.87

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Solution

The fourth proportional to 3,210.27, 4,815.87 and 1,455.87 is: 2,184.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210.27 : 4,815.87 = 1,455.87 : x
  2. Step 2: Convert to fraction form
    3,210.27/4,815.87 = 1,455.87/x
  3. Step 3: Cross multiply
    3,210.27x = 4,815.87 × 1,455.87
  4. Step 4: Simplify right side
    3,210.27x = 7,011,280.66
  5. Step 5: Solve for x
    x = 7,011,280.66/3,210.27
  6. Step 6: Final answer
    x = 2,184.02

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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.