Home / 1,396.23-1,926.84-924.94

Finding the Fourth Proportional to 1,396.23, 1,926.84 and 924.94

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Solution

The fourth proportional to 1,396.23, 1,926.84 and 924.94 is: 1,276.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396.23 : 1,926.84 = 924.94 : x
  2. Step 2: Convert to fraction form
    1,396.23/1,926.84 = 924.94/x
  3. Step 3: Cross multiply
    1,396.23x = 1,926.84 × 924.94
  4. Step 4: Simplify right side
    1,396.23x = 1,782,211.39
  5. Step 5: Solve for x
    x = 1,782,211.39/1,396.23
  6. Step 6: Final answer
    x = 1,276.45

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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.