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Finding the Fourth Proportional to 5,990.64, 8,985.96 and 1,886.64

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Solution

The fourth proportional to 5,990.64, 8,985.96 and 1,886.64 is: 2,829.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,990.64 : 8,985.96 = 1,886.64 : x
  2. Step 2: Convert to fraction form
    5,990.64/8,985.96 = 1,886.64/x
  3. Step 3: Cross multiply
    5,990.64x = 8,985.96 × 1,886.64
  4. Step 4: Simplify right side
    5,990.64x = 16,953,271.57
  5. Step 5: Solve for x
    x = 16,953,271.57/5,990.64
  6. Step 6: Final answer
    x = 2,829.96

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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.