Home / 2,319.24-3,477.32-1,279.74

Finding the Fourth Proportional to 2,319.24, 3,477.32 and 1,279.74

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Solution

The fourth proportional to 2,319.24, 3,477.32 and 1,279.74 is: 1,918.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,319.24 : 3,477.32 = 1,279.74 : x
  2. Step 2: Convert to fraction form
    2,319.24/3,477.32 = 1,279.74/x
  3. Step 3: Cross multiply
    2,319.24x = 3,477.32 × 1,279.74
  4. Step 4: Simplify right side
    2,319.24x = 4,450,065.50
  5. Step 5: Solve for x
    x = 4,450,065.50/2,319.24
  6. Step 6: Final answer
    x = 1,918.76

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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.