Home / 1,477.13-2,215.53-381.41

Finding the Fourth Proportional to 1,477.13, 2,215.53 and 381.41

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Solution

The fourth proportional to 1,477.13, 2,215.53 and 381.41 is: 572.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,477.13 : 2,215.53 = 381.41 : x
  2. Step 2: Convert to fraction form
    1,477.13/2,215.53 = 381.41/x
  3. Step 3: Cross multiply
    1,477.13x = 2,215.53 × 381.41
  4. Step 4: Simplify right side
    1,477.13x = 845,023.87
  5. Step 5: Solve for x
    x = 845,023.87/1,477.13
  6. Step 6: Final answer
    x = 572.07

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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.