Home / 2,219.79-3,332.72-1,395.61

Finding the Fourth Proportional to 2,219.79, 3,332.72 and 1,395.61

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Solution

The fourth proportional to 2,219.79, 3,332.72 and 1,395.61 is: 2,095.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.79 : 3,332.72 = 1,395.61 : x
  2. Step 2: Convert to fraction form
    2,219.79/3,332.72 = 1,395.61/x
  3. Step 3: Cross multiply
    2,219.79x = 3,332.72 × 1,395.61
  4. Step 4: Simplify right side
    2,219.79x = 4,651,177.36
  5. Step 5: Solve for x
    x = 4,651,177.36/2,219.79
  6. Step 6: Final answer
    x = 2,095.32

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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.