Home / 7,285.15-10,928.10-2,090.89

Finding the Fourth Proportional to 7,285.15, 10,928.10 and 2,090.89

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Solution

The fourth proportional to 7,285.15, 10,928.10 and 2,090.89 is: 3,136.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,285.15 : 10,928.10 = 2,090.89 : x
  2. Step 2: Convert to fraction form
    7,285.15/10,928.10 = 2,090.89/x
  3. Step 3: Cross multiply
    7,285.15x = 10,928.10 × 2,090.89
  4. Step 4: Simplify right side
    7,285.15x = 22,849,455.01
  5. Step 5: Solve for x
    x = 22,849,455.01/7,285.15
  6. Step 6: Final answer
    x = 3,136.44

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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.