Home / 4,187.15-6,280.42-1,688.50

Finding the Fourth Proportional to 4,187.15, 6,280.42 and 1,688.50

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Solution

The fourth proportional to 4,187.15, 6,280.42 and 1,688.50 is: 2,532.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,187.15 : 6,280.42 = 1,688.50 : x
  2. Step 2: Convert to fraction form
    4,187.15/6,280.42 = 1,688.50/x
  3. Step 3: Cross multiply
    4,187.15x = 6,280.42 × 1,688.50
  4. Step 4: Simplify right side
    4,187.15x = 10,604,489.17
  5. Step 5: Solve for x
    x = 10,604,489.17/4,187.15
  6. Step 6: Final answer
    x = 2,532.63

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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.