Home / 2,830.59-3,905.55-1,651.23

Finding the Fourth Proportional to 2,830.59, 3,905.55 and 1,651.23

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Solution

The fourth proportional to 2,830.59, 3,905.55 and 1,651.23 is: 2,278.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,830.59 : 3,905.55 = 1,651.23 : x
  2. Step 2: Convert to fraction form
    2,830.59/3,905.55 = 1,651.23/x
  3. Step 3: Cross multiply
    2,830.59x = 3,905.55 × 1,651.23
  4. Step 4: Simplify right side
    2,830.59x = 6,448,961.33
  5. Step 5: Solve for x
    x = 6,448,961.33/2,830.59
  6. Step 6: Final answer
    x = 2,278.31

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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.