Home / 4,280.42-6,420.56-1,358.73

Finding the Fourth Proportional to 4,280.42, 6,420.56 and 1,358.73

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Solution

The fourth proportional to 4,280.42, 6,420.56 and 1,358.73 is: 2,038.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,280.42 : 6,420.56 = 1,358.73 : x
  2. Step 2: Convert to fraction form
    4,280.42/6,420.56 = 1,358.73/x
  3. Step 3: Cross multiply
    4,280.42x = 6,420.56 × 1,358.73
  4. Step 4: Simplify right side
    4,280.42x = 8,723,800.70
  5. Step 5: Solve for x
    x = 8,723,800.70/4,280.42
  6. Step 6: Final answer
    x = 2,038.07

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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.