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Finding the Fourth Proportional to 5,885.64, 8,822.93 and 1,987.38

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Solution

The fourth proportional to 5,885.64, 8,822.93 and 1,987.38 is: 2,979.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,885.64 : 8,822.93 = 1,987.38 : x
  2. Step 2: Convert to fraction form
    5,885.64/8,822.93 = 1,987.38/x
  3. Step 3: Cross multiply
    5,885.64x = 8,822.93 × 1,987.38
  4. Step 4: Simplify right side
    5,885.64x = 17,534,504.69
  5. Step 5: Solve for x
    x = 17,534,504.69/5,885.64
  6. Step 6: Final answer
    x = 2,979.20

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1.5x scale

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.