Home / 2,945.61-4,063.32-1,866.91

Finding the Fourth Proportional to 2,945.61, 4,063.32 and 1,866.91

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Solution

The fourth proportional to 2,945.61, 4,063.32 and 1,866.91 is: 2,575.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945.61 : 4,063.32 = 1,866.91 : x
  2. Step 2: Convert to fraction form
    2,945.61/4,063.32 = 1,866.91/x
  3. Step 3: Cross multiply
    2,945.61x = 4,063.32 × 1,866.91
  4. Step 4: Simplify right side
    2,945.61x = 7,585,843.41
  5. Step 5: Solve for x
    x = 7,585,843.41/2,945.61
  6. Step 6: Final answer
    x = 2,575.30

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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.