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Finding the Fourth Proportional to 2,950.76, 4,423.58 and 1,719.40

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Solution

The fourth proportional to 2,950.76, 4,423.58 and 1,719.40 is: 2,577.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,950.76 : 4,423.58 = 1,719.40 : x
  2. Step 2: Convert to fraction form
    2,950.76/4,423.58 = 1,719.40/x
  3. Step 3: Cross multiply
    2,950.76x = 4,423.58 × 1,719.40
  4. Step 4: Simplify right side
    2,950.76x = 7,605,903.45
  5. Step 5: Solve for x
    x = 7,605,903.45/2,950.76
  6. Step 6: Final answer
    x = 2,577.61

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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.