Home / 5,381.10-8,071.04-1,485

Finding the Fourth Proportional to 5,381.10, 8,071.04 and 1,485

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Solution

The fourth proportional to 5,381.10, 8,071.04 and 1,485 is: 2,227.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,381.10 : 8,071.04 = 1,485 : x
  2. Step 2: Convert to fraction form
    5,381.10/8,071.04 = 1,485/x
  3. Step 3: Cross multiply
    5,381.10x = 8,071.04 × 1,485
  4. Step 4: Simplify right side
    5,381.10x = 11,985,498.11
  5. Step 5: Solve for x
    x = 11,985,498.11/5,381.10
  6. Step 6: Final answer
    x = 2,227.33

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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.