Home / 4,638.08-6,960.80-1,719.20

Finding the Fourth Proportional to 4,638.08, 6,960.80 and 1,719.20

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Solution

The fourth proportional to 4,638.08, 6,960.80 and 1,719.20 is: 2,580.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,638.08 : 6,960.80 = 1,719.20 : x
  2. Step 2: Convert to fraction form
    4,638.08/6,960.80 = 1,719.20/x
  3. Step 3: Cross multiply
    4,638.08x = 6,960.80 × 1,719.20
  4. Step 4: Simplify right side
    4,638.08x = 11,967,007.36
  5. Step 5: Solve for x
    x = 11,967,007.36/4,638.08
  6. Step 6: Final answer
    x = 2,580.16

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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.