Home / 7,328.42-10,989.53-2,885.39

Finding the Fourth Proportional to 7,328.42, 10,989.53 and 2,885.39

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Solution

The fourth proportional to 7,328.42, 10,989.53 and 2,885.39 is: 4,326.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,328.42 : 10,989.53 = 2,885.39 : x
  2. Step 2: Convert to fraction form
    7,328.42/10,989.53 = 2,885.39/x
  3. Step 3: Cross multiply
    7,328.42x = 10,989.53 × 2,885.39
  4. Step 4: Simplify right side
    7,328.42x = 31,709,079.97
  5. Step 5: Solve for x
    x = 31,709,079.97/7,328.42
  6. Step 6: Final answer
    x = 4,326.86

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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.