Home / 5,987.35-8,985.12-2,091.76

Finding the Fourth Proportional to 5,987.35, 8,985.12 and 2,091.76

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Solution

The fourth proportional to 5,987.35, 8,985.12 and 2,091.76 is: 3,139.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,987.35 : 8,985.12 = 2,091.76 : x
  2. Step 2: Convert to fraction form
    5,987.35/8,985.12 = 2,091.76/x
  3. Step 3: Cross multiply
    5,987.35x = 8,985.12 × 2,091.76
  4. Step 4: Simplify right side
    5,987.35x = 18,794,714.61
  5. Step 5: Solve for x
    x = 18,794,714.61/5,987.35
  6. Step 6: Final answer
    x = 3,139.07

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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.