Home / 2,123.17-2,929.60-1,336.66

Finding the Fourth Proportional to 2,123.17, 2,929.60 and 1,336.66

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Solution

The fourth proportional to 2,123.17, 2,929.60 and 1,336.66 is: 1,844.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,123.17 : 2,929.60 = 1,336.66 : x
  2. Step 2: Convert to fraction form
    2,123.17/2,929.60 = 1,336.66/x
  3. Step 3: Cross multiply
    2,123.17x = 2,929.60 × 1,336.66
  4. Step 4: Simplify right side
    2,123.17x = 3,915,879.14
  5. Step 5: Solve for x
    x = 3,915,879.14/2,123.17
  6. Step 6: Final answer
    x = 1,844.35

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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.