Home / 5,807.40-8,708.58-2,108.40

Finding the Fourth Proportional to 5,807.40, 8,708.58 and 2,108.40

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Solution

The fourth proportional to 5,807.40, 8,708.58 and 2,108.40 is: 3,161.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,807.40 : 8,708.58 = 2,108.40 : x
  2. Step 2: Convert to fraction form
    5,807.40/8,708.58 = 2,108.40/x
  3. Step 3: Cross multiply
    5,807.40x = 8,708.58 × 2,108.40
  4. Step 4: Simplify right side
    5,807.40x = 18,361,170.07
  5. Step 5: Solve for x
    x = 18,361,170.07/5,807.40
  6. Step 6: Final answer
    x = 3,161.69

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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.