Home / 2,611.68-3,604.34-1,903.76

Finding the Fourth Proportional to 2,611.68, 3,604.34 and 1,903.76

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Solution

The fourth proportional to 2,611.68, 3,604.34 and 1,903.76 is: 2,627.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,611.68 : 3,604.34 = 1,903.76 : x
  2. Step 2: Convert to fraction form
    2,611.68/3,604.34 = 1,903.76/x
  3. Step 3: Cross multiply
    2,611.68x = 3,604.34 × 1,903.76
  4. Step 4: Simplify right side
    2,611.68x = 6,861,798.32
  5. Step 5: Solve for x
    x = 6,861,798.32/2,611.68
  6. Step 6: Final answer
    x = 2,627.35

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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.