Home / 2,223.24-3,068.46-1,291.80

Finding the Fourth Proportional to 2,223.24, 3,068.46 and 1,291.80

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Solution

The fourth proportional to 2,223.24, 3,068.46 and 1,291.80 is: 1,782.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,223.24 : 3,068.46 = 1,291.80 : x
  2. Step 2: Convert to fraction form
    2,223.24/3,068.46 = 1,291.80/x
  3. Step 3: Cross multiply
    2,223.24x = 3,068.46 × 1,291.80
  4. Step 4: Simplify right side
    2,223.24x = 3,963,836.63
  5. Step 5: Solve for x
    x = 3,963,836.63/2,223.24
  6. Step 6: Final answer
    x = 1,782.91

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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.