Home / 4,225.65-5,831.28-2,311.39

Finding the Fourth Proportional to 4,225.65, 5,831.28 and 2,311.39

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Solution

The fourth proportional to 4,225.65, 5,831.28 and 2,311.39 is: 3,189.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,225.65 : 5,831.28 = 2,311.39 : x
  2. Step 2: Convert to fraction form
    4,225.65/5,831.28 = 2,311.39/x
  3. Step 3: Cross multiply
    4,225.65x = 5,831.28 × 2,311.39
  4. Step 4: Simplify right side
    4,225.65x = 13,478,362.28
  5. Step 5: Solve for x
    x = 13,478,362.28/4,225.65
  6. Step 6: Final answer
    x = 3,189.65

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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.