Home / 3,812.47-5,259.33-2,397.87

Finding the Fourth Proportional to 3,812.47, 5,259.33 and 2,397.87

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Solution

The fourth proportional to 3,812.47, 5,259.33 and 2,397.87 is: 3,307.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,812.47 : 5,259.33 = 2,397.87 : x
  2. Step 2: Convert to fraction form
    3,812.47/5,259.33 = 2,397.87/x
  3. Step 3: Cross multiply
    3,812.47x = 5,259.33 × 2,397.87
  4. Step 4: Simplify right side
    3,812.47x = 12,611,189.63
  5. Step 5: Solve for x
    x = 12,611,189.63/3,812.47
  6. Step 6: Final answer
    x = 3,307.88

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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.