Home / 7,871.32-10,862.70-4,334.80

Finding the Fourth Proportional to 7,871.32, 10,862.70 and 4,334.80

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Solution

The fourth proportional to 7,871.32, 10,862.70 and 4,334.80 is: 5,982.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,871.32 : 10,862.70 = 4,334.80 : x
  2. Step 2: Convert to fraction form
    7,871.32/10,862.70 = 4,334.80/x
  3. Step 3: Cross multiply
    7,871.32x = 10,862.70 × 4,334.80
  4. Step 4: Simplify right side
    7,871.32x = 47,087,631.96
  5. Step 5: Solve for x
    x = 47,087,631.96/7,871.32
  6. Step 6: Final answer
    x = 5,982.18

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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.