Home / 7,090.36-9,784.86-3,946.34

Finding the Fourth Proportional to 7,090.36, 9,784.86 and 3,946.34

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Solution

The fourth proportional to 7,090.36, 9,784.86 and 3,946.34 is: 5,446.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,090.36 : 9,784.86 = 3,946.34 : x
  2. Step 2: Convert to fraction form
    7,090.36/9,784.86 = 3,946.34/x
  3. Step 3: Cross multiply
    7,090.36x = 9,784.86 × 3,946.34
  4. Step 4: Simplify right side
    7,090.36x = 38,614,384.41
  5. Step 5: Solve for x
    x = 38,614,384.41/7,090.36
  6. Step 6: Final answer
    x = 5,446.04

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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.