Home / 4,280.08-6,419.43-1,357.72

Finding the Fourth Proportional to 4,280.08, 6,419.43 and 1,357.72

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Solution

The fourth proportional to 4,280.08, 6,419.43 and 1,357.72 is: 2,036.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,280.08 : 6,419.43 = 1,357.72 : x
  2. Step 2: Convert to fraction form
    4,280.08/6,419.43 = 1,357.72/x
  3. Step 3: Cross multiply
    4,280.08x = 6,419.43 × 1,357.72
  4. Step 4: Simplify right side
    4,280.08x = 8,715,788.50
  5. Step 5: Solve for x
    x = 8,715,788.50/4,280.08
  6. Step 6: Final answer
    x = 2,036.36

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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.