Home / 3,518.21-5,279.67-1,875.89

Finding the Fourth Proportional to 3,518.21, 5,279.67 and 1,875.89

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Solution

The fourth proportional to 3,518.21, 5,279.67 and 1,875.89 is: 2,815.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,518.21 : 5,279.67 = 1,875.89 : x
  2. Step 2: Convert to fraction form
    3,518.21/5,279.67 = 1,875.89/x
  3. Step 3: Cross multiply
    3,518.21x = 5,279.67 × 1,875.89
  4. Step 4: Simplify right side
    3,518.21x = 9,904,053.76
  5. Step 5: Solve for x
    x = 9,904,053.76/3,518.21
  6. Step 6: Final answer
    x = 2,815.09

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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.