Home / 1,646.15-2,465.51-1,154.75

Finding the Fourth Proportional to 1,646.15, 2,465.51 and 1,154.75

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Solution

The fourth proportional to 1,646.15, 2,465.51 and 1,154.75 is: 1,729.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,646.15 : 2,465.51 = 1,154.75 : x
  2. Step 2: Convert to fraction form
    1,646.15/2,465.51 = 1,154.75/x
  3. Step 3: Cross multiply
    1,646.15x = 2,465.51 × 1,154.75
  4. Step 4: Simplify right side
    1,646.15x = 2,847,029.57
  5. Step 5: Solve for x
    x = 2,847,029.57/1,646.15
  6. Step 6: Final answer
    x = 1,729.51

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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.