Home / 2,783.40-4,168.98-2,290.92

Finding the Fourth Proportional to 2,783.40, 4,168.98 and 2,290.92

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Solution

The fourth proportional to 2,783.40, 4,168.98 and 2,290.92 is: 3,431.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,783.40 : 4,168.98 = 2,290.92 : x
  2. Step 2: Convert to fraction form
    2,783.40/4,168.98 = 2,290.92/x
  3. Step 3: Cross multiply
    2,783.40x = 4,168.98 × 2,290.92
  4. Step 4: Simplify right side
    2,783.40x = 9,550,799.66
  5. Step 5: Solve for x
    x = 9,550,799.66/2,783.40
  6. Step 6: Final answer
    x = 3,431.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.