Home / 7,220.10-9,964.44-4,386.86

Finding the Fourth Proportional to 7,220.10, 9,964.44 and 4,386.86

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Solution

The fourth proportional to 7,220.10, 9,964.44 and 4,386.86 is: 6,054.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.10 : 9,964.44 = 4,386.86 : x
  2. Step 2: Convert to fraction form
    7,220.10/9,964.44 = 4,386.86/x
  3. Step 3: Cross multiply
    7,220.10x = 9,964.44 × 4,386.86
  4. Step 4: Simplify right side
    7,220.10x = 43,712,553.44
  5. Step 5: Solve for x
    x = 43,712,553.44/7,220.10
  6. Step 6: Final answer
    x = 6,054.29

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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.