Home / 2,074.20-2,862.55-1,190.28

Finding the Fourth Proportional to 2,074.20, 2,862.55 and 1,190.28

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Solution

The fourth proportional to 2,074.20, 2,862.55 and 1,190.28 is: 1,642.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,074.20 : 2,862.55 = 1,190.28 : x
  2. Step 2: Convert to fraction form
    2,074.20/2,862.55 = 1,190.28/x
  3. Step 3: Cross multiply
    2,074.20x = 2,862.55 × 1,190.28
  4. Step 4: Simplify right side
    2,074.20x = 3,407,236.01
  5. Step 5: Solve for x
    x = 3,407,236.01/2,074.20
  6. Step 6: Final answer
    x = 1,642.67

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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.