Home / 5,139.48-7,710.37-1,629.47

Finding the Fourth Proportional to 5,139.48, 7,710.37 and 1,629.47

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Solution

The fourth proportional to 5,139.48, 7,710.37 and 1,629.47 is: 2,444.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,139.48 : 7,710.37 = 1,629.47 : x
  2. Step 2: Convert to fraction form
    5,139.48/7,710.37 = 1,629.47/x
  3. Step 3: Cross multiply
    5,139.48x = 7,710.37 × 1,629.47
  4. Step 4: Simplify right side
    5,139.48x = 12,563,816.60
  5. Step 5: Solve for x
    x = 12,563,816.60/5,139.48
  6. Step 6: Final answer
    x = 2,444.57

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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.