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Finding the Fourth Proportional to 2,929.64, 4,392.04 and 1,368.86

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Solution

The fourth proportional to 2,929.64, 4,392.04 and 1,368.86 is: 2,052.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,929.64 : 4,392.04 = 1,368.86 : x
  2. Step 2: Convert to fraction form
    2,929.64/4,392.04 = 1,368.86/x
  3. Step 3: Cross multiply
    2,929.64x = 4,392.04 × 1,368.86
  4. Step 4: Simplify right side
    2,929.64x = 6,012,095.43
  5. Step 5: Solve for x
    x = 6,012,095.43/2,929.64
  6. Step 6: Final answer
    x = 2,052.17

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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.