Home / 4,139.51-6,209.21-1,019.55

Finding the Fourth Proportional to 4,139.51, 6,209.21 and 1,019.55

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Solution

The fourth proportional to 4,139.51, 6,209.21 and 1,019.55 is: 1,529.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,139.51 : 6,209.21 = 1,019.55 : x
  2. Step 2: Convert to fraction form
    4,139.51/6,209.21 = 1,019.55/x
  3. Step 3: Cross multiply
    4,139.51x = 6,209.21 × 1,019.55
  4. Step 4: Simplify right side
    4,139.51x = 6,330,594.96
  5. Step 5: Solve for x
    x = 6,330,594.96/4,139.51
  6. Step 6: Final answer
    x = 1,529.31

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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.