Home / 7,274.63-10,038.51-4,289.78

Finding the Fourth Proportional to 7,274.63, 10,038.51 and 4,289.78

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Solution

The fourth proportional to 7,274.63, 10,038.51 and 4,289.78 is: 5,919.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,274.63 : 10,038.51 = 4,289.78 : x
  2. Step 2: Convert to fraction form
    7,274.63/10,038.51 = 4,289.78/x
  3. Step 3: Cross multiply
    7,274.63x = 10,038.51 × 4,289.78
  4. Step 4: Simplify right side
    7,274.63x = 43,062,949.24
  5. Step 5: Solve for x
    x = 43,062,949.24/7,274.63
  6. Step 6: Final answer
    x = 5,919.61

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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.