Home / 1,477.96-2,215.50-553.30

Finding the Fourth Proportional to 1,477.96, 2,215.50 and 553.30

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Solution

The fourth proportional to 1,477.96, 2,215.50 and 553.30 is: 829.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,477.96 : 2,215.50 = 553.30 : x
  2. Step 2: Convert to fraction form
    1,477.96/2,215.50 = 553.30/x
  3. Step 3: Cross multiply
    1,477.96x = 2,215.50 × 553.30
  4. Step 4: Simplify right side
    1,477.96x = 1,225,836.15
  5. Step 5: Solve for x
    x = 1,225,836.15/1,477.96
  6. Step 6: Final answer
    x = 829.41

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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.