Home / 2,762.12-3,811.74-1,503.20

Finding the Fourth Proportional to 2,762.12, 3,811.74 and 1,503.20

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Solution

The fourth proportional to 2,762.12, 3,811.74 and 1,503.20 is: 2,074.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,762.12 : 3,811.74 = 1,503.20 : x
  2. Step 2: Convert to fraction form
    2,762.12/3,811.74 = 1,503.20/x
  3. Step 3: Cross multiply
    2,762.12x = 3,811.74 × 1,503.20
  4. Step 4: Simplify right side
    2,762.12x = 5,729,807.57
  5. Step 5: Solve for x
    x = 5,729,807.57/2,762.12
  6. Step 6: Final answer
    x = 2,074.42

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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.