Home / 1,246.40-1,869.24-369.08

Finding the Fourth Proportional to 1,246.40, 1,869.24 and 369.08

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Solution

The fourth proportional to 1,246.40, 1,869.24 and 369.08 is: 553.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,246.40 : 1,869.24 = 369.08 : x
  2. Step 2: Convert to fraction form
    1,246.40/1,869.24 = 369.08/x
  3. Step 3: Cross multiply
    1,246.40x = 1,869.24 × 369.08
  4. Step 4: Simplify right side
    1,246.40x = 689,899.10
  5. Step 5: Solve for x
    x = 689,899.10/1,246.40
  6. Step 6: Final answer
    x = 553.51

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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.