Home / 2,518.72-3,479.34-2,395.70

Finding the Fourth Proportional to 2,518.72, 3,479.34 and 2,395.70

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Solution

The fourth proportional to 2,518.72, 3,479.34 and 2,395.70 is: 3,309.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,518.72 : 3,479.34 = 2,395.70 : x
  2. Step 2: Convert to fraction form
    2,518.72/3,479.34 = 2,395.70/x
  3. Step 3: Cross multiply
    2,518.72x = 3,479.34 × 2,395.70
  4. Step 4: Simplify right side
    2,518.72x = 8,335,454.84
  5. Step 5: Solve for x
    x = 8,335,454.84/2,518.72
  6. Step 6: Final answer
    x = 3,309.40

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.