Home / 5,007.11-7,510.40-1,719.86

Finding the Fourth Proportional to 5,007.11, 7,510.40 and 1,719.86

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Solution

The fourth proportional to 5,007.11, 7,510.40 and 1,719.86 is: 2,579.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,007.11 : 7,510.40 = 1,719.86 : x
  2. Step 2: Convert to fraction form
    5,007.11/7,510.40 = 1,719.86/x
  3. Step 3: Cross multiply
    5,007.11x = 7,510.40 × 1,719.86
  4. Step 4: Simplify right side
    5,007.11x = 12,916,827.94
  5. Step 5: Solve for x
    x = 12,916,827.94/5,007.11
  6. Step 6: Final answer
    x = 2,579.70

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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.