Home / 5,417.96-8,130.60-2,645.96

Finding the Fourth Proportional to 5,417.96, 8,130.60 and 2,645.96

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Solution

The fourth proportional to 5,417.96, 8,130.60 and 2,645.96 is: 3,970.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,417.96 : 8,130.60 = 2,645.96 : x
  2. Step 2: Convert to fraction form
    5,417.96/8,130.60 = 2,645.96/x
  3. Step 3: Cross multiply
    5,417.96x = 8,130.60 × 2,645.96
  4. Step 4: Simplify right side
    5,417.96x = 21,513,242.38
  5. Step 5: Solve for x
    x = 21,513,242.38/5,417.96
  6. Step 6: Final answer
    x = 3,970.73

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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.