Home / 3,560.90-5,342.09-1,220.81

Finding the Fourth Proportional to 3,560.90, 5,342.09 and 1,220.81

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Solution

The fourth proportional to 3,560.90, 5,342.09 and 1,220.81 is: 1,831.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,560.90 : 5,342.09 = 1,220.81 : x
  2. Step 2: Convert to fraction form
    3,560.90/5,342.09 = 1,220.81/x
  3. Step 3: Cross multiply
    3,560.90x = 5,342.09 × 1,220.81
  4. Step 4: Simplify right side
    3,560.90x = 6,521,644.08
  5. Step 5: Solve for x
    x = 6,521,644.08/3,560.90
  6. Step 6: Final answer
    x = 1,831.46

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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.