Home / 7,770.18-10,722.98-4,233.40

Finding the Fourth Proportional to 7,770.18, 10,722.98 and 4,233.40

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Solution

The fourth proportional to 7,770.18, 10,722.98 and 4,233.40 is: 5,842.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,770.18 : 10,722.98 = 4,233.40 : x
  2. Step 2: Convert to fraction form
    7,770.18/10,722.98 = 4,233.40/x
  3. Step 3: Cross multiply
    7,770.18x = 10,722.98 × 4,233.40
  4. Step 4: Simplify right side
    7,770.18x = 45,394,588.75
  5. Step 5: Solve for x
    x = 45,394,588.75/7,770.18
  6. Step 6: Final answer
    x = 5,842.15

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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.