Home / 7,090.97-10,628.62-2,928.69

Finding the Fourth Proportional to 7,090.97, 10,628.62 and 2,928.69

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Solution

The fourth proportional to 7,090.97, 10,628.62 and 2,928.69 is: 4,389.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,090.97 : 10,628.62 = 2,928.69 : x
  2. Step 2: Convert to fraction form
    7,090.97/10,628.62 = 2,928.69/x
  3. Step 3: Cross multiply
    7,090.97x = 10,628.62 × 2,928.69
  4. Step 4: Simplify right side
    7,090.97x = 31,127,925.79
  5. Step 5: Solve for x
    x = 31,127,925.79/7,090.97
  6. Step 6: Final answer
    x = 4,389.80

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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.