Home / 1,430.03-2,144.66-552.21

Finding the Fourth Proportional to 1,430.03, 2,144.66 and 552.21

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Solution

The fourth proportional to 1,430.03, 2,144.66 and 552.21 is: 828.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430.03 : 2,144.66 = 552.21 : x
  2. Step 2: Convert to fraction form
    1,430.03/2,144.66 = 552.21/x
  3. Step 3: Cross multiply
    1,430.03x = 2,144.66 × 552.21
  4. Step 4: Simplify right side
    1,430.03x = 1,184,299.94
  5. Step 5: Solve for x
    x = 1,184,299.94/1,430.03
  6. Step 6: Final answer
    x = 828.17

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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.