Home / 7,090.43-9,784.59-3,946.55

Finding the Fourth Proportional to 7,090.43, 9,784.59 and 3,946.55

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Solution

The fourth proportional to 7,090.43, 9,784.59 and 3,946.55 is: 5,446.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,090.43 : 9,784.59 = 3,946.55 : x
  2. Step 2: Convert to fraction form
    7,090.43/9,784.59 = 3,946.55/x
  3. Step 3: Cross multiply
    7,090.43x = 9,784.59 × 3,946.55
  4. Step 4: Simplify right side
    7,090.43x = 38,615,324.74
  5. Step 5: Solve for x
    x = 38,615,324.74/7,090.43
  6. Step 6: Final answer
    x = 5,446.12

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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.