Home / 2,942.16-4,411.80-1,643.28

Finding the Fourth Proportional to 2,942.16, 4,411.80 and 1,643.28

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Solution

The fourth proportional to 2,942.16, 4,411.80 and 1,643.28 is: 2,464.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,942.16 : 4,411.80 = 1,643.28 : x
  2. Step 2: Convert to fraction form
    2,942.16/4,411.80 = 1,643.28/x
  3. Step 3: Cross multiply
    2,942.16x = 4,411.80 × 1,643.28
  4. Step 4: Simplify right side
    2,942.16x = 7,249,822.70
  5. Step 5: Solve for x
    x = 7,249,822.70/2,942.16
  6. Step 6: Final answer
    x = 2,464.12

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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.