Home / 7,220.36-9,964.76-4,387.07

Finding the Fourth Proportional to 7,220.36, 9,964.76 and 4,387.07

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Solution

The fourth proportional to 7,220.36, 9,964.76 and 4,387.07 is: 6,054.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.36 : 9,964.76 = 4,387.07 : x
  2. Step 2: Convert to fraction form
    7,220.36/9,964.76 = 4,387.07/x
  3. Step 3: Cross multiply
    7,220.36x = 9,964.76 × 4,387.07
  4. Step 4: Simplify right side
    7,220.36x = 43,716,102.63
  5. Step 5: Solve for x
    x = 43,716,102.63/7,220.36
  6. Step 6: Final answer
    x = 6,054.56

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1.5x scale

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.