Home / 3,017.10-4,163.40-1,690.50

Finding the Fourth Proportional to 3,017.10, 4,163.40 and 1,690.50

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Solution

The fourth proportional to 3,017.10, 4,163.40 and 1,690.50 is: 2,332.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,017.10 : 4,163.40 = 1,690.50 : x
  2. Step 2: Convert to fraction form
    3,017.10/4,163.40 = 1,690.50/x
  3. Step 3: Cross multiply
    3,017.10x = 4,163.40 × 1,690.50
  4. Step 4: Simplify right side
    3,017.10x = 7,038,227.70
  5. Step 5: Solve for x
    x = 7,038,227.70/3,017.10
  6. Step 6: Final answer
    x = 2,332.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.