Home / 4,427.60-6,643.76-1,964.16

Finding the Fourth Proportional to 4,427.60, 6,643.76 and 1,964.16

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Solution

The fourth proportional to 4,427.60, 6,643.76 and 1,964.16 is: 2,947.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,427.60 : 6,643.76 = 1,964.16 : x
  2. Step 2: Convert to fraction form
    4,427.60/6,643.76 = 1,964.16/x
  3. Step 3: Cross multiply
    4,427.60x = 6,643.76 × 1,964.16
  4. Step 4: Simplify right side
    4,427.60x = 13,049,407.64
  5. Step 5: Solve for x
    x = 13,049,407.64/4,427.60
  6. Step 6: Final answer
    x = 2,947.29

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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.