Home / 5,275.32-7,279.08-2,917

Finding the Fourth Proportional to 5,275.32, 7,279.08 and 2,917

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Solution

The fourth proportional to 5,275.32, 7,279.08 and 2,917 is: 4,024.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,275.32 : 7,279.08 = 2,917 : x
  2. Step 2: Convert to fraction form
    5,275.32/7,279.08 = 2,917/x
  3. Step 3: Cross multiply
    5,275.32x = 7,279.08 × 2,917
  4. Step 4: Simplify right side
    5,275.32x = 21,233,076.36
  5. Step 5: Solve for x
    x = 21,233,076.36/5,275.32
  6. Step 6: Final answer
    x = 4,024.99

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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.