Home / 1,707.03-2,355.93-999.09

Finding the Fourth Proportional to 1,707.03, 2,355.93 and 999.09

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Solution

The fourth proportional to 1,707.03, 2,355.93 and 999.09 is: 1,378.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,707.03 : 2,355.93 = 999.09 : x
  2. Step 2: Convert to fraction form
    1,707.03/2,355.93 = 999.09/x
  3. Step 3: Cross multiply
    1,707.03x = 2,355.93 × 999.09
  4. Step 4: Simplify right side
    1,707.03x = 2,353,786.10
  5. Step 5: Solve for x
    x = 2,353,786.10/1,707.03
  6. Step 6: Final answer
    x = 1,378.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.