Home / 4,148.57-6,228.99-1,688.19

Finding the Fourth Proportional to 4,148.57, 6,228.99 and 1,688.19

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Solution

The fourth proportional to 4,148.57, 6,228.99 and 1,688.19 is: 2,534.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,148.57 : 6,228.99 = 1,688.19 : x
  2. Step 2: Convert to fraction form
    4,148.57/6,228.99 = 1,688.19/x
  3. Step 3: Cross multiply
    4,148.57x = 6,228.99 × 1,688.19
  4. Step 4: Simplify right side
    4,148.57x = 10,515,718.63
  5. Step 5: Solve for x
    x = 10,515,718.63/4,148.57
  6. Step 6: Final answer
    x = 2,534.78

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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.