Home / 2,678.19-3,695.91-1,499.28

Finding the Fourth Proportional to 2,678.19, 3,695.91 and 1,499.28

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Solution

The fourth proportional to 2,678.19, 3,695.91 and 1,499.28 is: 2,069.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,678.19 : 3,695.91 = 1,499.28 : x
  2. Step 2: Convert to fraction form
    2,678.19/3,695.91 = 1,499.28/x
  3. Step 3: Cross multiply
    2,678.19x = 3,695.91 × 1,499.28
  4. Step 4: Simplify right side
    2,678.19x = 5,541,203.94
  5. Step 5: Solve for x
    x = 5,541,203.94/2,678.19
  6. Step 6: Final answer
    x = 2,069.01

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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.