Home / 1,302.28-1,949.64-1,012.84

Finding the Fourth Proportional to 1,302.28, 1,949.64 and 1,012.84

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Solution

The fourth proportional to 1,302.28, 1,949.64 and 1,012.84 is: 1,516.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,302.28 : 1,949.64 = 1,012.84 : x
  2. Step 2: Convert to fraction form
    1,302.28/1,949.64 = 1,012.84/x
  3. Step 3: Cross multiply
    1,302.28x = 1,949.64 × 1,012.84
  4. Step 4: Simplify right side
    1,302.28x = 1,974,673.38
  5. Step 5: Solve for x
    x = 1,974,673.38/1,302.28
  6. Step 6: Final answer
    x = 1,516.32

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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.