Home / 7,431.42-10,255.28-4,287.54

Finding the Fourth Proportional to 7,431.42, 10,255.28 and 4,287.54

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Solution

The fourth proportional to 7,431.42, 10,255.28 and 4,287.54 is: 5,916.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,431.42 : 10,255.28 = 4,287.54 : x
  2. Step 2: Convert to fraction form
    7,431.42/10,255.28 = 4,287.54/x
  3. Step 3: Cross multiply
    7,431.42x = 10,255.28 × 4,287.54
  4. Step 4: Simplify right side
    7,431.42x = 43,969,901.77
  5. Step 5: Solve for x
    x = 43,969,901.77/7,431.42
  6. Step 6: Final answer
    x = 5,916.76

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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.