Home / 7,705.28-11,556.80-2,774.16

Finding the Fourth Proportional to 7,705.28, 11,556.80 and 2,774.16

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Solution

The fourth proportional to 7,705.28, 11,556.80 and 2,774.16 is: 4,160.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,705.28 : 11,556.80 = 2,774.16 : x
  2. Step 2: Convert to fraction form
    7,705.28/11,556.80 = 2,774.16/x
  3. Step 3: Cross multiply
    7,705.28x = 11,556.80 × 2,774.16
  4. Step 4: Simplify right side
    7,705.28x = 32,060,412.29
  5. Step 5: Solve for x
    x = 32,060,412.29/7,705.28
  6. Step 6: Final answer
    x = 4,160.84

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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.