Home / 1,513.45-2,270.35-473.43

Finding the Fourth Proportional to 1,513.45, 2,270.35 and 473.43

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Solution

The fourth proportional to 1,513.45, 2,270.35 and 473.43 is: 710.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,513.45 : 2,270.35 = 473.43 : x
  2. Step 2: Convert to fraction form
    1,513.45/2,270.35 = 473.43/x
  3. Step 3: Cross multiply
    1,513.45x = 2,270.35 × 473.43
  4. Step 4: Simplify right side
    1,513.45x = 1,074,845.47
  5. Step 5: Solve for x
    x = 1,074,845.47/1,513.45
  6. Step 6: Final answer
    x = 710.19

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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.