Home / 1,646.62-2,465.37-1,315.98

Finding the Fourth Proportional to 1,646.62, 2,465.37 and 1,315.98

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Solution

The fourth proportional to 1,646.62, 2,465.37 and 1,315.98 is: 1,970.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,646.62 : 2,465.37 = 1,315.98 : x
  2. Step 2: Convert to fraction form
    1,646.62/2,465.37 = 1,315.98/x
  3. Step 3: Cross multiply
    1,646.62x = 2,465.37 × 1,315.98
  4. Step 4: Simplify right side
    1,646.62x = 3,244,377.61
  5. Step 5: Solve for x
    x = 3,244,377.61/1,646.62
  6. Step 6: Final answer
    x = 1,970.33

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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.