Home / 7,477.75-11,210.25-3,315.49

Finding the Fourth Proportional to 7,477.75, 11,210.25 and 3,315.49

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Solution

The fourth proportional to 7,477.75, 11,210.25 and 3,315.49 is: 4,970.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,477.75 : 11,210.25 = 3,315.49 : x
  2. Step 2: Convert to fraction form
    7,477.75/11,210.25 = 3,315.49/x
  3. Step 3: Cross multiply
    7,477.75x = 11,210.25 × 3,315.49
  4. Step 4: Simplify right side
    7,477.75x = 37,167,456.18
  5. Step 5: Solve for x
    x = 37,167,456.18/7,477.75
  6. Step 6: Final answer
    x = 4,970.41

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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.