Home / 1,926.45-2,888.96-1,276.29

Finding the Fourth Proportional to 1,926.45, 2,888.96 and 1,276.29

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Solution

The fourth proportional to 1,926.45, 2,888.96 and 1,276.29 is: 1,913.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,926.45 : 2,888.96 = 1,276.29 : x
  2. Step 2: Convert to fraction form
    1,926.45/2,888.96 = 1,276.29/x
  3. Step 3: Cross multiply
    1,926.45x = 2,888.96 × 1,276.29
  4. Step 4: Simplify right side
    1,926.45x = 3,687,144.38
  5. Step 5: Solve for x
    x = 3,687,144.38/1,926.45
  6. Step 6: Final answer
    x = 1,913.96

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1.5x scale

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.