Home / 7,176.30-10,764.45-1,911.30

Finding the Fourth Proportional to 7,176.30, 10,764.45 and 1,911.30

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Solution

The fourth proportional to 7,176.30, 10,764.45 and 1,911.30 is: 2,866.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,176.30 : 10,764.45 = 1,911.30 : x
  2. Step 2: Convert to fraction form
    7,176.30/10,764.45 = 1,911.30/x
  3. Step 3: Cross multiply
    7,176.30x = 10,764.45 × 1,911.30
  4. Step 4: Simplify right side
    7,176.30x = 20,574,093.29
  5. Step 5: Solve for x
    x = 20,574,093.29/7,176.30
  6. Step 6: Final answer
    x = 2,866.95

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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.