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Finding the Fourth Proportional to 7,870.53, 10,862 and 4,334.41

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Solution

The fourth proportional to 7,870.53, 10,862 and 4,334.41 is: 5,981.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,870.53 : 10,862 = 4,334.41 : x
  2. Step 2: Convert to fraction form
    7,870.53/10,862 = 4,334.41/x
  3. Step 3: Cross multiply
    7,870.53x = 10,862 × 4,334.41
  4. Step 4: Simplify right side
    7,870.53x = 47,080,361.42
  5. Step 5: Solve for x
    x = 47,080,361.42/7,870.53
  6. Step 6: Final answer
    x = 5,981.85

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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.