Home / 5,407.84-8,110.56-1,709.60

Finding the Fourth Proportional to 5,407.84, 8,110.56 and 1,709.60

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Solution

The fourth proportional to 5,407.84, 8,110.56 and 1,709.60 is: 2,564.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,407.84 : 8,110.56 = 1,709.60 : x
  2. Step 2: Convert to fraction form
    5,407.84/8,110.56 = 1,709.60/x
  3. Step 3: Cross multiply
    5,407.84x = 8,110.56 × 1,709.60
  4. Step 4: Simplify right side
    5,407.84x = 13,865,813.38
  5. Step 5: Solve for x
    x = 13,865,813.38/5,407.84
  6. Step 6: Final answer
    x = 2,564.02

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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.