Home / 3,347.78-4,619.52-1,931.31

Finding the Fourth Proportional to 3,347.78, 4,619.52 and 1,931.31

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Solution

The fourth proportional to 3,347.78, 4,619.52 and 1,931.31 is: 2,664.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,347.78 : 4,619.52 = 1,931.31 : x
  2. Step 2: Convert to fraction form
    3,347.78/4,619.52 = 1,931.31/x
  3. Step 3: Cross multiply
    3,347.78x = 4,619.52 × 1,931.31
  4. Step 4: Simplify right side
    3,347.78x = 8,921,725.17
  5. Step 5: Solve for x
    x = 8,921,725.17/3,347.78
  6. Step 6: Final answer
    x = 2,664.97

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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.