Home / 3,168.13-4,750.58-1,688.19

Finding the Fourth Proportional to 3,168.13, 4,750.58 and 1,688.19

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Solution

The fourth proportional to 3,168.13, 4,750.58 and 1,688.19 is: 2,531.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168.13 : 4,750.58 = 1,688.19 : x
  2. Step 2: Convert to fraction form
    3,168.13/4,750.58 = 1,688.19/x
  3. Step 3: Cross multiply
    3,168.13x = 4,750.58 × 1,688.19
  4. Step 4: Simplify right side
    3,168.13x = 8,019,849.46
  5. Step 5: Solve for x
    x = 8,019,849.46/3,168.13
  6. Step 6: Final answer
    x = 2,531.41

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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.