Home / 7,048.60-9,727.36-3,905.08

Finding the Fourth Proportional to 7,048.60, 9,727.36 and 3,905.08

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Solution

The fourth proportional to 7,048.60, 9,727.36 and 3,905.08 is: 5,389.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,048.60 : 9,727.36 = 3,905.08 : x
  2. Step 2: Convert to fraction form
    7,048.60/9,727.36 = 3,905.08/x
  3. Step 3: Cross multiply
    7,048.60x = 9,727.36 × 3,905.08
  4. Step 4: Simplify right side
    7,048.60x = 37,986,118.99
  5. Step 5: Solve for x
    x = 37,986,118.99/7,048.60
  6. Step 6: Final answer
    x = 5,389.17

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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.