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Finding the Fourth Proportional to 7,809.01, 11,713.40 and 1,885.84

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Solution

The fourth proportional to 7,809.01, 11,713.40 and 1,885.84 is: 2,828.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,809.01 : 11,713.40 = 1,885.84 : x
  2. Step 2: Convert to fraction form
    7,809.01/11,713.40 = 1,885.84/x
  3. Step 3: Cross multiply
    7,809.01x = 11,713.40 × 1,885.84
  4. Step 4: Simplify right side
    7,809.01x = 22,089,598.26
  5. Step 5: Solve for x
    x = 22,089,598.26/7,809.01
  6. Step 6: Final answer
    x = 2,828.73

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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.