Home / 1,475.58-2,216.53-928.15

Finding the Fourth Proportional to 1,475.58, 2,216.53 and 928.15

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Solution

The fourth proportional to 1,475.58, 2,216.53 and 928.15 is: 1,394.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,475.58 : 2,216.53 = 928.15 : x
  2. Step 2: Convert to fraction form
    1,475.58/2,216.53 = 928.15/x
  3. Step 3: Cross multiply
    1,475.58x = 2,216.53 × 928.15
  4. Step 4: Simplify right side
    1,475.58x = 2,057,267.94
  5. Step 5: Solve for x
    x = 2,057,267.94/1,475.58
  6. Step 6: Final answer
    x = 1,394.21

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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.