Home / 5,007.12-6,909.39-3,118.92

Finding the Fourth Proportional to 5,007.12, 6,909.39 and 3,118.92

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Solution

The fourth proportional to 5,007.12, 6,909.39 and 3,118.92 is: 4,303.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,007.12 : 6,909.39 = 3,118.92 : x
  2. Step 2: Convert to fraction form
    5,007.12/6,909.39 = 3,118.92/x
  3. Step 3: Cross multiply
    5,007.12x = 6,909.39 × 3,118.92
  4. Step 4: Simplify right side
    5,007.12x = 21,549,834.66
  5. Step 5: Solve for x
    x = 21,549,834.66/5,007.12
  6. Step 6: Final answer
    x = 4,303.84

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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.