Home / 5,238.02-7,856.13-1,728.07

Finding the Fourth Proportional to 5,238.02, 7,856.13 and 1,728.07

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Solution

The fourth proportional to 5,238.02, 7,856.13 and 1,728.07 is: 2,591.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,238.02 : 7,856.13 = 1,728.07 : x
  2. Step 2: Convert to fraction form
    5,238.02/7,856.13 = 1,728.07/x
  3. Step 3: Cross multiply
    5,238.02x = 7,856.13 × 1,728.07
  4. Step 4: Simplify right side
    5,238.02x = 13,575,942.57
  5. Step 5: Solve for x
    x = 13,575,942.57/5,238.02
  6. Step 6: Final answer
    x = 2,591.81

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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.