Home / 2,223.60-3,068.36-1,292.08

Finding the Fourth Proportional to 2,223.60, 3,068.36 and 1,292.08

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Solution

The fourth proportional to 2,223.60, 3,068.36 and 1,292.08 is: 1,782.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,223.60 : 3,068.36 = 1,292.08 : x
  2. Step 2: Convert to fraction form
    2,223.60/3,068.36 = 1,292.08/x
  3. Step 3: Cross multiply
    2,223.60x = 3,068.36 × 1,292.08
  4. Step 4: Simplify right side
    2,223.60x = 3,964,566.59
  5. Step 5: Solve for x
    x = 3,964,566.59/2,223.60
  6. Step 6: Final answer
    x = 1,782.95

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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.