Home / 5,639.73-8,457.94-1,690.83

Finding the Fourth Proportional to 5,639.73, 8,457.94 and 1,690.83

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Solution

The fourth proportional to 5,639.73, 8,457.94 and 1,690.83 is: 2,535.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,639.73 : 8,457.94 = 1,690.83 : x
  2. Step 2: Convert to fraction form
    5,639.73/8,457.94 = 1,690.83/x
  3. Step 3: Cross multiply
    5,639.73x = 8,457.94 × 1,690.83
  4. Step 4: Simplify right side
    5,639.73x = 14,300,938.69
  5. Step 5: Solve for x
    x = 14,300,938.69/5,639.73
  6. Step 6: Final answer
    x = 2,535.75

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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.