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Finding the Fourth Proportional to 2,895.66, 4,342.46 and 947.39

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Solution

The fourth proportional to 2,895.66, 4,342.46 and 947.39 is: 1,420.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,895.66 : 4,342.46 = 947.39 : x
  2. Step 2: Convert to fraction form
    2,895.66/4,342.46 = 947.39/x
  3. Step 3: Cross multiply
    2,895.66x = 4,342.46 × 947.39
  4. Step 4: Simplify right side
    2,895.66x = 4,113,976.73
  5. Step 5: Solve for x
    x = 4,113,976.73/2,895.66
  6. Step 6: Final answer
    x = 1,420.74

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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.