Home / 2,926.08-4,390.32-1,386.08

Finding the Fourth Proportional to 2,926.08, 4,390.32 and 1,386.08

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Solution

The fourth proportional to 2,926.08, 4,390.32 and 1,386.08 is: 2,079.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,926.08 : 4,390.32 = 1,386.08 : x
  2. Step 2: Convert to fraction form
    2,926.08/4,390.32 = 1,386.08/x
  3. Step 3: Cross multiply
    2,926.08x = 4,390.32 × 1,386.08
  4. Step 4: Simplify right side
    2,926.08x = 6,085,334.75
  5. Step 5: Solve for x
    x = 6,085,334.75/2,926.08
  6. Step 6: Final answer
    x = 2,079.69

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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.