Home / 3,280.04-4,918.43-1,430.35

Finding the Fourth Proportional to 3,280.04, 4,918.43 and 1,430.35

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Solution

The fourth proportional to 3,280.04, 4,918.43 and 1,430.35 is: 2,144.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.04 : 4,918.43 = 1,430.35 : x
  2. Step 2: Convert to fraction form
    3,280.04/4,918.43 = 1,430.35/x
  3. Step 3: Cross multiply
    3,280.04x = 4,918.43 × 1,430.35
  4. Step 4: Simplify right side
    3,280.04x = 7,035,067.63
  5. Step 5: Solve for x
    x = 7,035,067.63/3,280.04
  6. Step 6: Final answer
    x = 2,144.81

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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.