Home / 6,816.80-10,225.21-1,886.45

Finding the Fourth Proportional to 6,816.80, 10,225.21 and 1,886.45

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Solution

The fourth proportional to 6,816.80, 10,225.21 and 1,886.45 is: 2,829.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,816.80 : 10,225.21 = 1,886.45 : x
  2. Step 2: Convert to fraction form
    6,816.80/10,225.21 = 1,886.45/x
  3. Step 3: Cross multiply
    6,816.80x = 10,225.21 × 1,886.45
  4. Step 4: Simplify right side
    6,816.80x = 19,289,347.40
  5. Step 5: Solve for x
    x = 19,289,347.40/6,816.80
  6. Step 6: Final answer
    x = 2,829.68

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Similar ratio
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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.