Home / 2,930.32-4,386.97-2,279.08

Finding the Fourth Proportional to 2,930.32, 4,386.97 and 2,279.08

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Solution

The fourth proportional to 2,930.32, 4,386.97 and 2,279.08 is: 3,412.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,930.32 : 4,386.97 = 2,279.08 : x
  2. Step 2: Convert to fraction form
    2,930.32/4,386.97 = 2,279.08/x
  3. Step 3: Cross multiply
    2,930.32x = 4,386.97 × 2,279.08
  4. Step 4: Simplify right side
    2,930.32x = 9,998,238.92
  5. Step 5: Solve for x
    x = 9,998,238.92/2,930.32
  6. Step 6: Final answer
    x = 3,412.00

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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.