Home / 3,419.24-5,130.47-1,859.18

Finding the Fourth Proportional to 3,419.24, 5,130.47 and 1,859.18

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Solution

The fourth proportional to 3,419.24, 5,130.47 and 1,859.18 is: 2,789.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.24 : 5,130.47 = 1,859.18 : x
  2. Step 2: Convert to fraction form
    3,419.24/5,130.47 = 1,859.18/x
  3. Step 3: Cross multiply
    3,419.24x = 5,130.47 × 1,859.18
  4. Step 4: Simplify right side
    3,419.24x = 9,538,432.27
  5. Step 5: Solve for x
    x = 9,538,432.27/3,419.24
  6. Step 6: Final answer
    x = 2,789.64

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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.