Home / 6,207.40-8,565.37-3,688.59

Finding the Fourth Proportional to 6,207.40, 8,565.37 and 3,688.59

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Solution

The fourth proportional to 6,207.40, 8,565.37 and 3,688.59 is: 5,089.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,207.40 : 8,565.37 = 3,688.59 : x
  2. Step 2: Convert to fraction form
    6,207.40/8,565.37 = 3,688.59/x
  3. Step 3: Cross multiply
    6,207.40x = 8,565.37 × 3,688.59
  4. Step 4: Simplify right side
    6,207.40x = 31,594,138.13
  5. Step 5: Solve for x
    x = 31,594,138.13/6,207.40
  6. Step 6: Final answer
    x = 5,089.75

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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.