Home / 5,428.64-8,146.32-2,141.16

Finding the Fourth Proportional to 5,428.64, 8,146.32 and 2,141.16

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Solution

The fourth proportional to 5,428.64, 8,146.32 and 2,141.16 is: 3,213.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.64 : 8,146.32 = 2,141.16 : x
  2. Step 2: Convert to fraction form
    5,428.64/8,146.32 = 2,141.16/x
  3. Step 3: Cross multiply
    5,428.64x = 8,146.32 × 2,141.16
  4. Step 4: Simplify right side
    5,428.64x = 17,442,574.53
  5. Step 5: Solve for x
    x = 17,442,574.53/5,428.64
  6. Step 6: Final answer
    x = 3,213.07

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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.