Home / 5,102.94-7,042.47-2,864.76

Finding the Fourth Proportional to 5,102.94, 7,042.47 and 2,864.76

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Solution

The fourth proportional to 5,102.94, 7,042.47 and 2,864.76 is: 3,953.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,102.94 : 7,042.47 = 2,864.76 : x
  2. Step 2: Convert to fraction form
    5,102.94/7,042.47 = 2,864.76/x
  3. Step 3: Cross multiply
    5,102.94x = 7,042.47 × 2,864.76
  4. Step 4: Simplify right side
    5,102.94x = 20,174,986.36
  5. Step 5: Solve for x
    x = 20,174,986.36/5,102.94
  6. Step 6: Final answer
    x = 3,953.60

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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.