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Finding the Fourth Proportional to 2,895.06, 4,342.14 and 947.73

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Solution

The fourth proportional to 2,895.06, 4,342.14 and 947.73 is: 1,421.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,895.06 : 4,342.14 = 947.73 : x
  2. Step 2: Convert to fraction form
    2,895.06/4,342.14 = 947.73/x
  3. Step 3: Cross multiply
    2,895.06x = 4,342.14 × 947.73
  4. Step 4: Simplify right side
    2,895.06x = 4,115,176.34
  5. Step 5: Solve for x
    x = 4,115,176.34/2,895.06
  6. Step 6: Final answer
    x = 1,421.45

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Similar ratio
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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.