Home / 2,921.42-4,378.48-1,460.99

Finding the Fourth Proportional to 2,921.42, 4,378.48 and 1,460.99

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Solution

The fourth proportional to 2,921.42, 4,378.48 and 1,460.99 is: 2,189.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.42 : 4,378.48 = 1,460.99 : x
  2. Step 2: Convert to fraction form
    2,921.42/4,378.48 = 1,460.99/x
  3. Step 3: Cross multiply
    2,921.42x = 4,378.48 × 1,460.99
  4. Step 4: Simplify right side
    2,921.42x = 6,396,889.95
  5. Step 5: Solve for x
    x = 6,396,889.95/2,921.42
  6. Step 6: Final answer
    x = 2,189.65

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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.