Home / 2,419.68-3,335.56-1,709.22

Finding the Fourth Proportional to 2,419.68, 3,335.56 and 1,709.22

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Solution

The fourth proportional to 2,419.68, 3,335.56 and 1,709.22 is: 2,356.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,419.68 : 3,335.56 = 1,709.22 : x
  2. Step 2: Convert to fraction form
    2,419.68/3,335.56 = 1,709.22/x
  3. Step 3: Cross multiply
    2,419.68x = 3,335.56 × 1,709.22
  4. Step 4: Simplify right side
    2,419.68x = 5,701,205.86
  5. Step 5: Solve for x
    x = 5,701,205.86/2,419.68
  6. Step 6: Final answer
    x = 2,356.18

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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.