Home / 5,639.80-8,459.70-1,941.70

Finding the Fourth Proportional to 5,639.80, 8,459.70 and 1,941.70

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Solution

The fourth proportional to 5,639.80, 8,459.70 and 1,941.70 is: 2,912.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,639.80 : 8,459.70 = 1,941.70 : x
  2. Step 2: Convert to fraction form
    5,639.80/8,459.70 = 1,941.70/x
  3. Step 3: Cross multiply
    5,639.80x = 8,459.70 × 1,941.70
  4. Step 4: Simplify right side
    5,639.80x = 16,426,199.49
  5. Step 5: Solve for x
    x = 16,426,199.49/5,639.80
  6. Step 6: Final answer
    x = 2,912.55

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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.