Home / 3,518.19-5,279.61-1,875.92

Finding the Fourth Proportional to 3,518.19, 5,279.61 and 1,875.92

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Solution

The fourth proportional to 3,518.19, 5,279.61 and 1,875.92 is: 2,815.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,518.19 : 5,279.61 = 1,875.92 : x
  2. Step 2: Convert to fraction form
    3,518.19/5,279.61 = 1,875.92/x
  3. Step 3: Cross multiply
    3,518.19x = 5,279.61 × 1,875.92
  4. Step 4: Simplify right side
    3,518.19x = 9,904,099.59
  5. Step 5: Solve for x
    x = 9,904,099.59/3,518.19
  6. Step 6: Final answer
    x = 2,815.11

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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.