Home / 4,215.08-6,317.58-2,980.64

Finding the Fourth Proportional to 4,215.08, 6,317.58 and 2,980.64

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Solution

The fourth proportional to 4,215.08, 6,317.58 and 2,980.64 is: 4,467.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,215.08 : 6,317.58 = 2,980.64 : x
  2. Step 2: Convert to fraction form
    4,215.08/6,317.58 = 2,980.64/x
  3. Step 3: Cross multiply
    4,215.08x = 6,317.58 × 2,980.64
  4. Step 4: Simplify right side
    4,215.08x = 18,830,431.65
  5. Step 5: Solve for x
    x = 18,830,431.65/4,215.08
  6. Step 6: Final answer
    x = 4,467.40

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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.