Home / 1,681.23-2,521.61-448.76

Finding the Fourth Proportional to 1,681.23, 2,521.61 and 448.76

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Solution

The fourth proportional to 1,681.23, 2,521.61 and 448.76 is: 673.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681.23 : 2,521.61 = 448.76 : x
  2. Step 2: Convert to fraction form
    1,681.23/2,521.61 = 448.76/x
  3. Step 3: Cross multiply
    1,681.23x = 2,521.61 × 448.76
  4. Step 4: Simplify right side
    1,681.23x = 1,131,582.85
  5. Step 5: Solve for x
    x = 1,131,582.85/1,681.23
  6. Step 6: Final answer
    x = 673.07

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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.