Home / 4,187.05-6,280.68-1,720.14

Finding the Fourth Proportional to 4,187.05, 6,280.68 and 1,720.14

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Solution

The fourth proportional to 4,187.05, 6,280.68 and 1,720.14 is: 2,580.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,187.05 : 6,280.68 = 1,720.14 : x
  2. Step 2: Convert to fraction form
    4,187.05/6,280.68 = 1,720.14/x
  3. Step 3: Cross multiply
    4,187.05x = 6,280.68 × 1,720.14
  4. Step 4: Simplify right side
    4,187.05x = 10,803,648.90
  5. Step 5: Solve for x
    x = 10,803,648.90/4,187.05
  6. Step 6: Final answer
    x = 2,580.25

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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.