Home / 3,360.21-5,036.91-1,279.68

Finding the Fourth Proportional to 3,360.21, 5,036.91 and 1,279.68

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Solution

The fourth proportional to 3,360.21, 5,036.91 and 1,279.68 is: 1,918.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,360.21 : 5,036.91 = 1,279.68 : x
  2. Step 2: Convert to fraction form
    3,360.21/5,036.91 = 1,279.68/x
  3. Step 3: Cross multiply
    3,360.21x = 5,036.91 × 1,279.68
  4. Step 4: Simplify right side
    3,360.21x = 6,445,632.99
  5. Step 5: Solve for x
    x = 6,445,632.99/3,360.21
  6. Step 6: Final answer
    x = 1,918.22

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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.