Home / 5,618.81-8,425.76-2,985.68

Finding the Fourth Proportional to 5,618.81, 8,425.76 and 2,985.68

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Solution

The fourth proportional to 5,618.81, 8,425.76 and 2,985.68 is: 4,477.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.81 : 8,425.76 = 2,985.68 : x
  2. Step 2: Convert to fraction form
    5,618.81/8,425.76 = 2,985.68/x
  3. Step 3: Cross multiply
    5,618.81x = 8,425.76 × 2,985.68
  4. Step 4: Simplify right side
    5,618.81x = 25,156,566.06
  5. Step 5: Solve for x
    x = 25,156,566.06/5,618.81
  6. Step 6: Final answer
    x = 4,477.21

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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.