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Finding the Fourth Proportional to 3,338.32, 5,007.81 and 1,146.76

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Solution

The fourth proportional to 3,338.32, 5,007.81 and 1,146.76 is: 1,720.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,338.32 : 5,007.81 = 1,146.76 : x
  2. Step 2: Convert to fraction form
    3,338.32/5,007.81 = 1,146.76/x
  3. Step 3: Cross multiply
    3,338.32x = 5,007.81 × 1,146.76
  4. Step 4: Simplify right side
    3,338.32x = 5,742,731.16
  5. Step 5: Solve for x
    x = 5,742,731.16/3,338.32
  6. Step 6: Final answer
    x = 1,720.25

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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.