Home / 4,201.61-6,303.36-1,280.21

Finding the Fourth Proportional to 4,201.61, 6,303.36 and 1,280.21

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Solution

The fourth proportional to 4,201.61, 6,303.36 and 1,280.21 is: 1,920.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,201.61 : 6,303.36 = 1,280.21 : x
  2. Step 2: Convert to fraction form
    4,201.61/6,303.36 = 1,280.21/x
  3. Step 3: Cross multiply
    4,201.61x = 6,303.36 × 1,280.21
  4. Step 4: Simplify right side
    4,201.61x = 8,069,629.65
  5. Step 5: Solve for x
    x = 8,069,629.65/4,201.61
  6. Step 6: Final answer
    x = 1,920.60

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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.