Home / 6,489.09-8,953.61-4,130.37

Finding the Fourth Proportional to 6,489.09, 8,953.61 and 4,130.37

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Solution

The fourth proportional to 6,489.09, 8,953.61 and 4,130.37 is: 5,699.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,489.09 : 8,953.61 = 4,130.37 : x
  2. Step 2: Convert to fraction form
    6,489.09/8,953.61 = 4,130.37/x
  3. Step 3: Cross multiply
    6,489.09x = 8,953.61 × 4,130.37
  4. Step 4: Simplify right side
    6,489.09x = 36,981,701.48
  5. Step 5: Solve for x
    x = 36,981,701.48/6,489.09
  6. Step 6: Final answer
    x = 5,699.06

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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.