Home / 6,969.89-10,455.42-1,775.75

Finding the Fourth Proportional to 6,969.89, 10,455.42 and 1,775.75

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Solution

The fourth proportional to 6,969.89, 10,455.42 and 1,775.75 is: 2,663.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,969.89 : 10,455.42 = 1,775.75 : x
  2. Step 2: Convert to fraction form
    6,969.89/10,455.42 = 1,775.75/x
  3. Step 3: Cross multiply
    6,969.89x = 10,455.42 × 1,775.75
  4. Step 4: Simplify right side
    6,969.89x = 18,566,212.07
  5. Step 5: Solve for x
    x = 18,566,212.07/6,969.89
  6. Step 6: Final answer
    x = 2,663.77

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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.