Home / 2,902.38-4,003.77-1,783.57

Finding the Fourth Proportional to 2,902.38, 4,003.77 and 1,783.57

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Solution

The fourth proportional to 2,902.38, 4,003.77 and 1,783.57 is: 2,460.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,902.38 : 4,003.77 = 1,783.57 : x
  2. Step 2: Convert to fraction form
    2,902.38/4,003.77 = 1,783.57/x
  3. Step 3: Cross multiply
    2,902.38x = 4,003.77 × 1,783.57
  4. Step 4: Simplify right side
    2,902.38x = 7,140,994.05
  5. Step 5: Solve for x
    x = 7,140,994.05/2,902.38
  6. Step 6: Final answer
    x = 2,460.39

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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.