Home / 6,070.85-8,378.71-3,681.21

Finding the Fourth Proportional to 6,070.85, 8,378.71 and 3,681.21

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Solution

The fourth proportional to 6,070.85, 8,378.71 and 3,681.21 is: 5,080.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,070.85 : 8,378.71 = 3,681.21 : x
  2. Step 2: Convert to fraction form
    6,070.85/8,378.71 = 3,681.21/x
  3. Step 3: Cross multiply
    6,070.85x = 8,378.71 × 3,681.21
  4. Step 4: Simplify right side
    6,070.85x = 30,843,800.54
  5. Step 5: Solve for x
    x = 30,843,800.54/6,070.85
  6. Step 6: Final answer
    x = 5,080.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.