Home / 3,168.19-4,751.85-976.87

Finding the Fourth Proportional to 3,168.19, 4,751.85 and 976.87

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Solution

The fourth proportional to 3,168.19, 4,751.85 and 976.87 is: 1,465.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168.19 : 4,751.85 = 976.87 : x
  2. Step 2: Convert to fraction form
    3,168.19/4,751.85 = 976.87/x
  3. Step 3: Cross multiply
    3,168.19x = 4,751.85 × 976.87
  4. Step 4: Simplify right side
    3,168.19x = 4,641,939.71
  5. Step 5: Solve for x
    x = 4,641,939.71/3,168.19
  6. Step 6: Final answer
    x = 1,465.17

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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.