Home / 5,931.77-8,896.64-1,985.75

Finding the Fourth Proportional to 5,931.77, 8,896.64 and 1,985.75

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Solution

The fourth proportional to 5,931.77, 8,896.64 and 1,985.75 is: 2,978.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,931.77 : 8,896.64 = 1,985.75 : x
  2. Step 2: Convert to fraction form
    5,931.77/8,896.64 = 1,985.75/x
  3. Step 3: Cross multiply
    5,931.77x = 8,896.64 × 1,985.75
  4. Step 4: Simplify right side
    5,931.77x = 17,666,481.83
  5. Step 5: Solve for x
    x = 17,666,481.83/5,931.77
  6. Step 6: Final answer
    x = 2,978.28

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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.