Home / 2,479.05-3,420.36-1,535.54

Finding the Fourth Proportional to 2,479.05, 3,420.36 and 1,535.54

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Solution

The fourth proportional to 2,479.05, 3,420.36 and 1,535.54 is: 2,118.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,479.05 : 3,420.36 = 1,535.54 : x
  2. Step 2: Convert to fraction form
    2,479.05/3,420.36 = 1,535.54/x
  3. Step 3: Cross multiply
    2,479.05x = 3,420.36 × 1,535.54
  4. Step 4: Simplify right side
    2,479.05x = 5,252,082.49
  5. Step 5: Solve for x
    x = 5,252,082.49/2,479.05
  6. Step 6: Final answer
    x = 2,118.59

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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.