Home / 2,511.20-3,763.56-1,688.24

Finding the Fourth Proportional to 2,511.20, 3,763.56 and 1,688.24

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Solution

The fourth proportional to 2,511.20, 3,763.56 and 1,688.24 is: 2,530.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,511.20 : 3,763.56 = 1,688.24 : x
  2. Step 2: Convert to fraction form
    2,511.20/3,763.56 = 1,688.24/x
  3. Step 3: Cross multiply
    2,511.20x = 3,763.56 × 1,688.24
  4. Step 4: Simplify right side
    2,511.20x = 6,353,792.53
  5. Step 5: Solve for x
    x = 6,353,792.53/2,511.20
  6. Step 6: Final answer
    x = 2,530.18

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1.5x scale

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.