Home / 5,886.91-8,831.90-2,190.21

Finding the Fourth Proportional to 5,886.91, 8,831.90 and 2,190.21

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Solution

The fourth proportional to 5,886.91, 8,831.90 and 2,190.21 is: 3,285.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,886.91 : 8,831.90 = 2,190.21 : x
  2. Step 2: Convert to fraction form
    5,886.91/8,831.90 = 2,190.21/x
  3. Step 3: Cross multiply
    5,886.91x = 8,831.90 × 2,190.21
  4. Step 4: Simplify right side
    5,886.91x = 19,343,715.70
  5. Step 5: Solve for x
    x = 19,343,715.70/5,886.91
  6. Step 6: Final answer
    x = 3,285.89

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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.