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Finding the Fourth Proportional to 2,893.78, 4,340.67 and 2,320.30

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Solution

The fourth proportional to 2,893.78, 4,340.67 and 2,320.30 is: 3,480.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,893.78 : 4,340.67 = 2,320.30 : x
  2. Step 2: Convert to fraction form
    2,893.78/4,340.67 = 2,320.30/x
  3. Step 3: Cross multiply
    2,893.78x = 4,340.67 × 2,320.30
  4. Step 4: Simplify right side
    2,893.78x = 10,071,656.60
  5. Step 5: Solve for x
    x = 10,071,656.60/2,893.78
  6. Step 6: Final answer
    x = 3,480.45

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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.