Home / 3,646.24-5,031.68-2,074.40

Finding the Fourth Proportional to 3,646.24, 5,031.68 and 2,074.40

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Solution

The fourth proportional to 3,646.24, 5,031.68 and 2,074.40 is: 2,862.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,646.24 : 5,031.68 = 2,074.40 : x
  2. Step 2: Convert to fraction form
    3,646.24/5,031.68 = 2,074.40/x
  3. Step 3: Cross multiply
    3,646.24x = 5,031.68 × 2,074.40
  4. Step 4: Simplify right side
    3,646.24x = 10,437,716.99
  5. Step 5: Solve for x
    x = 10,437,716.99/3,646.24
  6. Step 6: Final answer
    x = 2,862.60

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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.