Home / 1,715.46-2,365.12-1,400.41

Finding the Fourth Proportional to 1,715.46, 2,365.12 and 1,400.41

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Solution

The fourth proportional to 1,715.46, 2,365.12 and 1,400.41 is: 1,930.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715.46 : 2,365.12 = 1,400.41 : x
  2. Step 2: Convert to fraction form
    1,715.46/2,365.12 = 1,400.41/x
  3. Step 3: Cross multiply
    1,715.46x = 2,365.12 × 1,400.41
  4. Step 4: Simplify right side
    1,715.46x = 3,312,137.70
  5. Step 5: Solve for x
    x = 3,312,137.70/1,715.46
  6. Step 6: Final answer
    x = 1,930.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.