Home / 2,678.08-3,695.80-1,499.18

Finding the Fourth Proportional to 2,678.08, 3,695.80 and 1,499.18

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Solution

The fourth proportional to 2,678.08, 3,695.80 and 1,499.18 is: 2,068.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,678.08 : 3,695.80 = 1,499.18 : x
  2. Step 2: Convert to fraction form
    2,678.08/3,695.80 = 1,499.18/x
  3. Step 3: Cross multiply
    2,678.08x = 3,695.80 × 1,499.18
  4. Step 4: Simplify right side
    2,678.08x = 5,540,669.44
  5. Step 5: Solve for x
    x = 5,540,669.44/2,678.08
  6. Step 6: Final answer
    x = 2,068.90

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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.