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Finding the Fourth Proportional to 5,103, 7,042.14 and 2,864.84

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Solution

The fourth proportional to 5,103, 7,042.14 and 2,864.84 is: 3,953.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,103 : 7,042.14 = 2,864.84 : x
  2. Step 2: Convert to fraction form
    5,103/7,042.14 = 2,864.84/x
  3. Step 3: Cross multiply
    5,103x = 7,042.14 × 2,864.84
  4. Step 4: Simplify right side
    5,103x = 20,174,569.15
  5. Step 5: Solve for x
    x = 20,174,569.15/5,103
  6. Step 6: Final answer
    x = 3,953.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.