Home / 6,860.08-10,290.80-1,929.76

Finding the Fourth Proportional to 6,860.08, 10,290.80 and 1,929.76

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Solution

The fourth proportional to 6,860.08, 10,290.80 and 1,929.76 is: 2,894.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,860.08 : 10,290.80 = 1,929.76 : x
  2. Step 2: Convert to fraction form
    6,860.08/10,290.80 = 1,929.76/x
  3. Step 3: Cross multiply
    6,860.08x = 10,290.80 × 1,929.76
  4. Step 4: Simplify right side
    6,860.08x = 19,858,774.21
  5. Step 5: Solve for x
    x = 19,858,774.21/6,860.08
  6. Step 6: Final answer
    x = 2,894.83

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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.