Home / 1,715.10-2,578.05-1,682.70

Finding the Fourth Proportional to 1,715.10, 2,578.05 and 1,682.70

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Solution

The fourth proportional to 1,715.10, 2,578.05 and 1,682.70 is: 2,529.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715.10 : 2,578.05 = 1,682.70 : x
  2. Step 2: Convert to fraction form
    1,715.10/2,578.05 = 1,682.70/x
  3. Step 3: Cross multiply
    1,715.10x = 2,578.05 × 1,682.70
  4. Step 4: Simplify right side
    1,715.10x = 4,338,084.74
  5. Step 5: Solve for x
    x = 4,338,084.74/1,715.10
  6. Step 6: Final answer
    x = 2,529.35

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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.