Home / 5,666.40-8,499.84-1,770.88

Finding the Fourth Proportional to 5,666.40, 8,499.84 and 1,770.88

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Solution

The fourth proportional to 5,666.40, 8,499.84 and 1,770.88 is: 2,656.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,666.40 : 8,499.84 = 1,770.88 : x
  2. Step 2: Convert to fraction form
    5,666.40/8,499.84 = 1,770.88/x
  3. Step 3: Cross multiply
    5,666.40x = 8,499.84 × 1,770.88
  4. Step 4: Simplify right side
    5,666.40x = 15,052,196.66
  5. Step 5: Solve for x
    x = 15,052,196.66/5,666.40
  6. Step 6: Final answer
    x = 2,656.40

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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.