Home / 2,988.90-4,484.16-2,662.08

Finding the Fourth Proportional to 2,988.90, 4,484.16 and 2,662.08

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Solution

The fourth proportional to 2,988.90, 4,484.16 and 2,662.08 is: 3,993.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.90 : 4,484.16 = 2,662.08 : x
  2. Step 2: Convert to fraction form
    2,988.90/4,484.16 = 2,662.08/x
  3. Step 3: Cross multiply
    2,988.90x = 4,484.16 × 2,662.08
  4. Step 4: Simplify right side
    2,988.90x = 11,937,192.65
  5. Step 5: Solve for x
    x = 11,937,192.65/2,988.90
  6. Step 6: Final answer
    x = 3,993.84

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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.