Home / 1,731.18-2,579.40-1,684.74

Finding the Fourth Proportional to 1,731.18, 2,579.40 and 1,684.74

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Solution

The fourth proportional to 1,731.18, 2,579.40 and 1,684.74 is: 2,510.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,731.18 : 2,579.40 = 1,684.74 : x
  2. Step 2: Convert to fraction form
    1,731.18/2,579.40 = 1,684.74/x
  3. Step 3: Cross multiply
    1,731.18x = 2,579.40 × 1,684.74
  4. Step 4: Simplify right side
    1,731.18x = 4,345,618.36
  5. Step 5: Solve for x
    x = 4,345,618.36/1,731.18
  6. Step 6: Final answer
    x = 2,510.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.