Home / 1,465.60-2,198.40-1,436.80

Finding the Fourth Proportional to 1,465.60, 2,198.40 and 1,436.80

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Solution

The fourth proportional to 1,465.60, 2,198.40 and 1,436.80 is: 2,155.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,465.60 : 2,198.40 = 1,436.80 : x
  2. Step 2: Convert to fraction form
    1,465.60/2,198.40 = 1,436.80/x
  3. Step 3: Cross multiply
    1,465.60x = 2,198.40 × 1,436.80
  4. Step 4: Simplify right side
    1,465.60x = 3,158,661.12
  5. Step 5: Solve for x
    x = 3,158,661.12/1,465.60
  6. Step 6: Final answer
    x = 2,155.20

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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.