Home / 4,280.72-6,421.23-1,358.73

Finding the Fourth Proportional to 4,280.72, 6,421.23 and 1,358.73

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Solution

The fourth proportional to 4,280.72, 6,421.23 and 1,358.73 is: 2,038.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,280.72 : 6,421.23 = 1,358.73 : x
  2. Step 2: Convert to fraction form
    4,280.72/6,421.23 = 1,358.73/x
  3. Step 3: Cross multiply
    4,280.72x = 6,421.23 × 1,358.73
  4. Step 4: Simplify right side
    4,280.72x = 8,724,717.84
  5. Step 5: Solve for x
    x = 8,724,717.84/4,280.72
  6. Step 6: Final answer
    x = 2,038.14

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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.