Home / 7,935.86-11,903.31-2,389.07

Finding the Fourth Proportional to 7,935.86, 11,903.31 and 2,389.07

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Solution

The fourth proportional to 7,935.86, 11,903.31 and 2,389.07 is: 3,583.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,935.86 : 11,903.31 = 2,389.07 : x
  2. Step 2: Convert to fraction form
    7,935.86/11,903.31 = 2,389.07/x
  3. Step 3: Cross multiply
    7,935.86x = 11,903.31 × 2,389.07
  4. Step 4: Simplify right side
    7,935.86x = 28,437,781.31
  5. Step 5: Solve for x
    x = 28,437,781.31/7,935.86
  6. Step 6: Final answer
    x = 3,583.46

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1.5x scale

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.