Home / 2,951.47-4,423.08-1,561.78

Finding the Fourth Proportional to 2,951.47, 4,423.08 and 1,561.78

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Solution

The fourth proportional to 2,951.47, 4,423.08 and 1,561.78 is: 2,340.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,951.47 : 4,423.08 = 1,561.78 : x
  2. Step 2: Convert to fraction form
    2,951.47/4,423.08 = 1,561.78/x
  3. Step 3: Cross multiply
    2,951.47x = 4,423.08 × 1,561.78
  4. Step 4: Simplify right side
    2,951.47x = 6,907,855.77
  5. Step 5: Solve for x
    x = 6,907,855.77/2,951.47
  6. Step 6: Final answer
    x = 2,340.48

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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.