Home / 3,220.10-4,831.70-1,575.75

Finding the Fourth Proportional to 3,220.10, 4,831.70 and 1,575.75

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Solution

The fourth proportional to 3,220.10, 4,831.70 and 1,575.75 is: 2,364.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.10 : 4,831.70 = 1,575.75 : x
  2. Step 2: Convert to fraction form
    3,220.10/4,831.70 = 1,575.75/x
  3. Step 3: Cross multiply
    3,220.10x = 4,831.70 × 1,575.75
  4. Step 4: Simplify right side
    3,220.10x = 7,613,551.28
  5. Step 5: Solve for x
    x = 7,613,551.28/3,220.10
  6. Step 6: Final answer
    x = 2,364.38

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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.