Home / 1,513.65-2,270.58-403.05

Finding the Fourth Proportional to 1,513.65, 2,270.58 and 403.05

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Solution

The fourth proportional to 1,513.65, 2,270.58 and 403.05 is: 604.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,513.65 : 2,270.58 = 403.05 : x
  2. Step 2: Convert to fraction form
    1,513.65/2,270.58 = 403.05/x
  3. Step 3: Cross multiply
    1,513.65x = 2,270.58 × 403.05
  4. Step 4: Simplify right side
    1,513.65x = 915,162.90
  5. Step 5: Solve for x
    x = 915,162.90/1,513.65
  6. Step 6: Final answer
    x = 604.60

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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.