Home / 3,130.52-4,690.35-1,647.54

Finding the Fourth Proportional to 3,130.52, 4,690.35 and 1,647.54

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Solution

The fourth proportional to 3,130.52, 4,690.35 and 1,647.54 is: 2,468.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130.52 : 4,690.35 = 1,647.54 : x
  2. Step 2: Convert to fraction form
    3,130.52/4,690.35 = 1,647.54/x
  3. Step 3: Cross multiply
    3,130.52x = 4,690.35 × 1,647.54
  4. Step 4: Simplify right side
    3,130.52x = 7,727,539.24
  5. Step 5: Solve for x
    x = 7,727,539.24/3,130.52
  6. Step 6: Final answer
    x = 2,468.46

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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.