Home / 5,415.73-8,123.89-1,718.24

Finding the Fourth Proportional to 5,415.73, 8,123.89 and 1,718.24

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Solution

The fourth proportional to 5,415.73, 8,123.89 and 1,718.24 is: 2,577.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.73 : 8,123.89 = 1,718.24 : x
  2. Step 2: Convert to fraction form
    5,415.73/8,123.89 = 1,718.24/x
  3. Step 3: Cross multiply
    5,415.73x = 8,123.89 × 1,718.24
  4. Step 4: Simplify right side
    5,415.73x = 13,958,792.75
  5. Step 5: Solve for x
    x = 13,958,792.75/5,415.73
  6. Step 6: Final answer
    x = 2,577.45

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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.