Home / 2,511.60-3,762.90-1,210.20

Finding the Fourth Proportional to 2,511.60, 3,762.90 and 1,210.20

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Solution

The fourth proportional to 2,511.60, 3,762.90 and 1,210.20 is: 1,813.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,511.60 : 3,762.90 = 1,210.20 : x
  2. Step 2: Convert to fraction form
    2,511.60/3,762.90 = 1,210.20/x
  3. Step 3: Cross multiply
    2,511.60x = 3,762.90 × 1,210.20
  4. Step 4: Simplify right side
    2,511.60x = 4,553,861.58
  5. Step 5: Solve for x
    x = 4,553,861.58/2,511.60
  6. Step 6: Final answer
    x = 1,813.13

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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.