Home / 3,384.04-4,668.42-1,985.80

Finding the Fourth Proportional to 3,384.04, 4,668.42 and 1,985.80

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Solution

The fourth proportional to 3,384.04, 4,668.42 and 1,985.80 is: 2,739.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,384.04 : 4,668.42 = 1,985.80 : x
  2. Step 2: Convert to fraction form
    3,384.04/4,668.42 = 1,985.80/x
  3. Step 3: Cross multiply
    3,384.04x = 4,668.42 × 1,985.80
  4. Step 4: Simplify right side
    3,384.04x = 9,270,548.44
  5. Step 5: Solve for x
    x = 9,270,548.44/3,384.04
  6. Step 6: Final answer
    x = 2,739.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.