Home / 3,314.45-4,573.83-1,987.91

Finding the Fourth Proportional to 3,314.45, 4,573.83 and 1,987.91

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Solution

The fourth proportional to 3,314.45, 4,573.83 and 1,987.91 is: 2,743.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,314.45 : 4,573.83 = 1,987.91 : x
  2. Step 2: Convert to fraction form
    3,314.45/4,573.83 = 1,987.91/x
  3. Step 3: Cross multiply
    3,314.45x = 4,573.83 × 1,987.91
  4. Step 4: Simplify right side
    3,314.45x = 9,092,364.13
  5. Step 5: Solve for x
    x = 9,092,364.13/3,314.45
  6. Step 6: Final answer
    x = 2,743.25

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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.