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Finding the Fourth Proportional to 10,648.93, 15,973.40 and 2,857.95

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Solution

The fourth proportional to 10,648.93, 15,973.40 and 2,857.95 is: 4,286.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,648.93 : 15,973.40 = 2,857.95 : x
  2. Step 2: Convert to fraction form
    10,648.93/15,973.40 = 2,857.95/x
  3. Step 3: Cross multiply
    10,648.93x = 15,973.40 × 2,857.95
  4. Step 4: Simplify right side
    10,648.93x = 45,651,178.53
  5. Step 5: Solve for x
    x = 45,651,178.53/10,648.93
  6. Step 6: Final answer
    x = 4,286.93

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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.