Home / 2,926.90-4,039.12-1,807.57

Finding the Fourth Proportional to 2,926.90, 4,039.12 and 1,807.57

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Solution

The fourth proportional to 2,926.90, 4,039.12 and 1,807.57 is: 2,494.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,926.90 : 4,039.12 = 1,807.57 : x
  2. Step 2: Convert to fraction form
    2,926.90/4,039.12 = 1,807.57/x
  3. Step 3: Cross multiply
    2,926.90x = 4,039.12 × 1,807.57
  4. Step 4: Simplify right side
    2,926.90x = 7,300,992.14
  5. Step 5: Solve for x
    x = 7,300,992.14/2,926.90
  6. Step 6: Final answer
    x = 2,494.45

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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.