Home / 7,486.48-10,330.86-4,129.31

Finding the Fourth Proportional to 7,486.48, 10,330.86 and 4,129.31

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Solution

The fourth proportional to 7,486.48, 10,330.86 and 4,129.31 is: 5,698.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,486.48 : 10,330.86 = 4,129.31 : x
  2. Step 2: Convert to fraction form
    7,486.48/10,330.86 = 4,129.31/x
  3. Step 3: Cross multiply
    7,486.48x = 10,330.86 × 4,129.31
  4. Step 4: Simplify right side
    7,486.48x = 42,659,323.51
  5. Step 5: Solve for x
    x = 42,659,323.51/7,486.48
  6. Step 6: Final answer
    x = 5,698.18

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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.