Home / 2,289.30-3,430.35-1,192.02

Finding the Fourth Proportional to 2,289.30, 3,430.35 and 1,192.02

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Solution

The fourth proportional to 2,289.30, 3,430.35 and 1,192.02 is: 1,786.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289.30 : 3,430.35 = 1,192.02 : x
  2. Step 2: Convert to fraction form
    2,289.30/3,430.35 = 1,192.02/x
  3. Step 3: Cross multiply
    2,289.30x = 3,430.35 × 1,192.02
  4. Step 4: Simplify right side
    2,289.30x = 4,089,045.81
  5. Step 5: Solve for x
    x = 4,089,045.81/2,289.30
  6. Step 6: Final answer
    x = 1,786.16

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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.