Home / 4,280.21-6,421.07-1,357.83

Finding the Fourth Proportional to 4,280.21, 6,421.07 and 1,357.83

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Solution

The fourth proportional to 4,280.21, 6,421.07 and 1,357.83 is: 2,036.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,280.21 : 6,421.07 = 1,357.83 : x
  2. Step 2: Convert to fraction form
    4,280.21/6,421.07 = 1,357.83/x
  3. Step 3: Cross multiply
    4,280.21x = 6,421.07 × 1,357.83
  4. Step 4: Simplify right side
    4,280.21x = 8,718,724.87
  5. Step 5: Solve for x
    x = 8,718,724.87/4,280.21
  6. Step 6: Final answer
    x = 2,036.99

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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.