Home / 2,445.68-3,669.12-1,145.63

Finding the Fourth Proportional to 2,445.68, 3,669.12 and 1,145.63

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Solution

The fourth proportional to 2,445.68, 3,669.12 and 1,145.63 is: 1,718.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,445.68 : 3,669.12 = 1,145.63 : x
  2. Step 2: Convert to fraction form
    2,445.68/3,669.12 = 1,145.63/x
  3. Step 3: Cross multiply
    2,445.68x = 3,669.12 × 1,145.63
  4. Step 4: Simplify right side
    2,445.68x = 4,203,453.95
  5. Step 5: Solve for x
    x = 4,203,453.95/2,445.68
  6. Step 6: Final answer
    x = 1,718.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.