Home / 7,271.28-10,890.32-4,343.58

Finding the Fourth Proportional to 7,271.28, 10,890.32 and 4,343.58

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Solution

The fourth proportional to 7,271.28, 10,890.32 and 4,343.58 is: 6,505.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,271.28 : 10,890.32 = 4,343.58 : x
  2. Step 2: Convert to fraction form
    7,271.28/10,890.32 = 4,343.58/x
  3. Step 3: Cross multiply
    7,271.28x = 10,890.32 × 4,343.58
  4. Step 4: Simplify right side
    7,271.28x = 47,302,954.43
  5. Step 5: Solve for x
    x = 47,302,954.43/7,271.28
  6. Step 6: Final answer
    x = 6,505.45

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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.