Home / 3,036.75-4,554.90-1,187.70

Finding the Fourth Proportional to 3,036.75, 4,554.90 and 1,187.70

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Solution

The fourth proportional to 3,036.75, 4,554.90 and 1,187.70 is: 1,781.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,036.75 : 4,554.90 = 1,187.70 : x
  2. Step 2: Convert to fraction form
    3,036.75/4,554.90 = 1,187.70/x
  3. Step 3: Cross multiply
    3,036.75x = 4,554.90 × 1,187.70
  4. Step 4: Simplify right side
    3,036.75x = 5,409,854.73
  5. Step 5: Solve for x
    x = 5,409,854.73/3,036.75
  6. Step 6: Final answer
    x = 1,781.46

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1.5x scale

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.