Home / 7,871.40-10,862.46-4,334.54

Finding the Fourth Proportional to 7,871.40, 10,862.46 and 4,334.54

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Solution

The fourth proportional to 7,871.40, 10,862.46 and 4,334.54 is: 5,981.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,871.40 : 10,862.46 = 4,334.54 : x
  2. Step 2: Convert to fraction form
    7,871.40/10,862.46 = 4,334.54/x
  3. Step 3: Cross multiply
    7,871.40x = 10,862.46 × 4,334.54
  4. Step 4: Simplify right side
    7,871.40x = 47,083,713.06
  5. Step 5: Solve for x
    x = 47,083,713.06/7,871.40
  6. Step 6: Final answer
    x = 5,981.62

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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.