Home / 5,325.88-7,988.82-1,864.12

Finding the Fourth Proportional to 5,325.88, 7,988.82 and 1,864.12

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Solution

The fourth proportional to 5,325.88, 7,988.82 and 1,864.12 is: 2,796.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,325.88 : 7,988.82 = 1,864.12 : x
  2. Step 2: Convert to fraction form
    5,325.88/7,988.82 = 1,864.12/x
  3. Step 3: Cross multiply
    5,325.88x = 7,988.82 × 1,864.12
  4. Step 4: Simplify right side
    5,325.88x = 14,892,119.14
  5. Step 5: Solve for x
    x = 14,892,119.14/5,325.88
  6. Step 6: Final answer
    x = 2,796.18

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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.