Home / 3,651.85-5,041.98-2,811.07

Finding the Fourth Proportional to 3,651.85, 5,041.98 and 2,811.07

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Solution

The fourth proportional to 3,651.85, 5,041.98 and 2,811.07 is: 3,881.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,651.85 : 5,041.98 = 2,811.07 : x
  2. Step 2: Convert to fraction form
    3,651.85/5,041.98 = 2,811.07/x
  3. Step 3: Cross multiply
    3,651.85x = 5,041.98 × 2,811.07
  4. Step 4: Simplify right side
    3,651.85x = 14,173,358.72
  5. Step 5: Solve for x
    x = 14,173,358.72/3,651.85
  6. Step 6: Final answer
    x = 3,881.14

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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.