Home / 2,942.57-4,411.71-1,381.77

Finding the Fourth Proportional to 2,942.57, 4,411.71 and 1,381.77

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Solution

The fourth proportional to 2,942.57, 4,411.71 and 1,381.77 is: 2,071.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,942.57 : 4,411.71 = 1,381.77 : x
  2. Step 2: Convert to fraction form
    2,942.57/4,411.71 = 1,381.77/x
  3. Step 3: Cross multiply
    2,942.57x = 4,411.71 × 1,381.77
  4. Step 4: Simplify right side
    2,942.57x = 6,095,953.71
  5. Step 5: Solve for x
    x = 6,095,953.71/2,942.57
  6. Step 6: Final answer
    x = 2,071.64

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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.