Home / 4,289.82-6,430.41-1,690.14

Finding the Fourth Proportional to 4,289.82, 6,430.41 and 1,690.14

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Solution

The fourth proportional to 4,289.82, 6,430.41 and 1,690.14 is: 2,533.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,289.82 : 6,430.41 = 1,690.14 : x
  2. Step 2: Convert to fraction form
    4,289.82/6,430.41 = 1,690.14/x
  3. Step 3: Cross multiply
    4,289.82x = 6,430.41 × 1,690.14
  4. Step 4: Simplify right side
    4,289.82x = 10,868,293.16
  5. Step 5: Solve for x
    x = 10,868,293.16/4,289.82
  6. Step 6: Final answer
    x = 2,533.51

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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.