Home / 1,926.84-2,660.32-1,298.08

Finding the Fourth Proportional to 1,926.84, 2,660.32 and 1,298.08

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Solution

The fourth proportional to 1,926.84, 2,660.32 and 1,298.08 is: 1,792.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,926.84 : 2,660.32 = 1,298.08 : x
  2. Step 2: Convert to fraction form
    1,926.84/2,660.32 = 1,298.08/x
  3. Step 3: Cross multiply
    1,926.84x = 2,660.32 × 1,298.08
  4. Step 4: Simplify right side
    1,926.84x = 3,453,308.19
  5. Step 5: Solve for x
    x = 3,453,308.19/1,926.84
  6. Step 6: Final answer
    x = 1,792.21

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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.