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Finding the Fourth Proportional to 7,477.06, 11,220.45 and 2,860.06

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Solution

The fourth proportional to 7,477.06, 11,220.45 and 2,860.06 is: 4,291.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,477.06 : 11,220.45 = 2,860.06 : x
  2. Step 2: Convert to fraction form
    7,477.06/11,220.45 = 2,860.06/x
  3. Step 3: Cross multiply
    7,477.06x = 11,220.45 × 2,860.06
  4. Step 4: Simplify right side
    7,477.06x = 32,091,160.23
  5. Step 5: Solve for x
    x = 32,091,160.23/7,477.06
  6. Step 6: Final answer
    x = 4,291.95

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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.