Home / 6,870.88-10,305.40-1,940.91

Finding the Fourth Proportional to 6,870.88, 10,305.40 and 1,940.91

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Solution

The fourth proportional to 6,870.88, 10,305.40 and 1,940.91 is: 2,911.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,870.88 : 10,305.40 = 1,940.91 : x
  2. Step 2: Convert to fraction form
    6,870.88/10,305.40 = 1,940.91/x
  3. Step 3: Cross multiply
    6,870.88x = 10,305.40 × 1,940.91
  4. Step 4: Simplify right side
    6,870.88x = 20,001,853.91
  5. Step 5: Solve for x
    x = 20,001,853.91/6,870.88
  6. Step 6: Final answer
    x = 2,911.11

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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.