Home / 2,926.28-4,039.08-1,807.40

Finding the Fourth Proportional to 2,926.28, 4,039.08 and 1,807.40

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Solution

The fourth proportional to 2,926.28, 4,039.08 and 1,807.40 is: 2,494.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,926.28 : 4,039.08 = 1,807.40 : x
  2. Step 2: Convert to fraction form
    2,926.28/4,039.08 = 1,807.40/x
  3. Step 3: Cross multiply
    2,926.28x = 4,039.08 × 1,807.40
  4. Step 4: Simplify right side
    2,926.28x = 7,300,233.19
  5. Step 5: Solve for x
    x = 7,300,233.19/2,926.28
  6. Step 6: Final answer
    x = 2,494.71

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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.