Home / 6,860.81-10,290.99-2,909.54

Finding the Fourth Proportional to 6,860.81, 10,290.99 and 2,909.54

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Solution

The fourth proportional to 6,860.81, 10,290.99 and 2,909.54 is: 4,364.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,860.81 : 10,290.99 = 2,909.54 : x
  2. Step 2: Convert to fraction form
    6,860.81/10,290.99 = 2,909.54/x
  3. Step 3: Cross multiply
    6,860.81x = 10,290.99 × 2,909.54
  4. Step 4: Simplify right side
    6,860.81x = 29,941,995.59
  5. Step 5: Solve for x
    x = 29,941,995.59/6,860.81
  6. Step 6: Final answer
    x = 4,364.21

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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.