Home / 4,139.10-6,209.55-1,365.30

Finding the Fourth Proportional to 4,139.10, 6,209.55 and 1,365.30

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Solution

The fourth proportional to 4,139.10, 6,209.55 and 1,365.30 is: 2,048.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,139.10 : 6,209.55 = 1,365.30 : x
  2. Step 2: Convert to fraction form
    4,139.10/6,209.55 = 1,365.30/x
  3. Step 3: Cross multiply
    4,139.10x = 6,209.55 × 1,365.30
  4. Step 4: Simplify right side
    4,139.10x = 8,477,898.62
  5. Step 5: Solve for x
    x = 8,477,898.62/4,139.10
  6. Step 6: Final answer
    x = 2,048.25

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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.