Home / 5,881.08-8,821.64-1,985.60

Finding the Fourth Proportional to 5,881.08, 8,821.64 and 1,985.60

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Solution

The fourth proportional to 5,881.08, 8,821.64 and 1,985.60 is: 2,978.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,881.08 : 8,821.64 = 1,985.60 : x
  2. Step 2: Convert to fraction form
    5,881.08/8,821.64 = 1,985.60/x
  3. Step 3: Cross multiply
    5,881.08x = 8,821.64 × 1,985.60
  4. Step 4: Simplify right side
    5,881.08x = 17,516,248.38
  5. Step 5: Solve for x
    x = 17,516,248.38/5,881.08
  6. Step 6: Final answer
    x = 2,978.41

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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.