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Finding the Fourth Proportional to 2,895.72, 4,342.60 and 947.44

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Solution

The fourth proportional to 2,895.72, 4,342.60 and 947.44 is: 1,420.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,895.72 : 4,342.60 = 947.44 : x
  2. Step 2: Convert to fraction form
    2,895.72/4,342.60 = 947.44/x
  3. Step 3: Cross multiply
    2,895.72x = 4,342.60 × 947.44
  4. Step 4: Simplify right side
    2,895.72x = 4,114,352.94
  5. Step 5: Solve for x
    x = 4,114,352.94/2,895.72
  6. Step 6: Final answer
    x = 1,420.84

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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.