Home / 2,698.07-4,045.28-1,378.58

Finding the Fourth Proportional to 2,698.07, 4,045.28 and 1,378.58

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Solution

The fourth proportional to 2,698.07, 4,045.28 and 1,378.58 is: 2,066.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,698.07 : 4,045.28 = 1,378.58 : x
  2. Step 2: Convert to fraction form
    2,698.07/4,045.28 = 1,378.58/x
  3. Step 3: Cross multiply
    2,698.07x = 4,045.28 × 1,378.58
  4. Step 4: Simplify right side
    2,698.07x = 5,576,714.98
  5. Step 5: Solve for x
    x = 5,576,714.98/2,698.07
  6. Step 6: Final answer
    x = 2,066.93

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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.