Home / 1,246.51-1,869.27-424.56

Finding the Fourth Proportional to 1,246.51, 1,869.27 and 424.56

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Solution

The fourth proportional to 1,246.51, 1,869.27 and 424.56 is: 636.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,246.51 : 1,869.27 = 424.56 : x
  2. Step 2: Convert to fraction form
    1,246.51/1,869.27 = 424.56/x
  3. Step 3: Cross multiply
    1,246.51x = 1,869.27 × 424.56
  4. Step 4: Simplify right side
    1,246.51x = 793,617.27
  5. Step 5: Solve for x
    x = 793,617.27/1,246.51
  6. Step 6: Final answer
    x = 636.67

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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.