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Finding the Fourth Proportional to 5,242.66, 7,864.07 and 1,347.07

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Solution

The fourth proportional to 5,242.66, 7,864.07 and 1,347.07 is: 2,020.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,242.66 : 7,864.07 = 1,347.07 : x
  2. Step 2: Convert to fraction form
    5,242.66/7,864.07 = 1,347.07/x
  3. Step 3: Cross multiply
    5,242.66x = 7,864.07 × 1,347.07
  4. Step 4: Simplify right side
    5,242.66x = 10,593,452.77
  5. Step 5: Solve for x
    x = 10,593,452.77/5,242.66
  6. Step 6: Final answer
    x = 2,020.63

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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.