Home / 2,151.19-2,965.65-1,441.80

Finding the Fourth Proportional to 2,151.19, 2,965.65 and 1,441.80

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Solution

The fourth proportional to 2,151.19, 2,965.65 and 1,441.80 is: 1,987.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,151.19 : 2,965.65 = 1,441.80 : x
  2. Step 2: Convert to fraction form
    2,151.19/2,965.65 = 1,441.80/x
  3. Step 3: Cross multiply
    2,151.19x = 2,965.65 × 1,441.80
  4. Step 4: Simplify right side
    2,151.19x = 4,275,868.76
  5. Step 5: Solve for x
    x = 4,275,868.76/2,151.19
  6. Step 6: Final answer
    x = 1,987.67

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1.5x scale

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.