Home / 5,426.52-8,140.86-1,728.63

Finding the Fourth Proportional to 5,426.52, 8,140.86 and 1,728.63

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Solution

The fourth proportional to 5,426.52, 8,140.86 and 1,728.63 is: 2,593.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,426.52 : 8,140.86 = 1,728.63 : x
  2. Step 2: Convert to fraction form
    5,426.52/8,140.86 = 1,728.63/x
  3. Step 3: Cross multiply
    5,426.52x = 8,140.86 × 1,728.63
  4. Step 4: Simplify right side
    5,426.52x = 14,072,534.82
  5. Step 5: Solve for x
    x = 14,072,534.82/5,426.52
  6. Step 6: Final answer
    x = 2,593.29

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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.