Home / 4,259.68-6,389.36-1,338.08

Finding the Fourth Proportional to 4,259.68, 6,389.36 and 1,338.08

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Solution

The fourth proportional to 4,259.68, 6,389.36 and 1,338.08 is: 2,007.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,259.68 : 6,389.36 = 1,338.08 : x
  2. Step 2: Convert to fraction form
    4,259.68/6,389.36 = 1,338.08/x
  3. Step 3: Cross multiply
    4,259.68x = 6,389.36 × 1,338.08
  4. Step 4: Simplify right side
    4,259.68x = 8,549,474.83
  5. Step 5: Solve for x
    x = 8,549,474.83/4,259.68
  6. Step 6: Final answer
    x = 2,007.07

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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.