Home / 7,285.28-10,929.54-2,090.76

Finding the Fourth Proportional to 7,285.28, 10,929.54 and 2,090.76

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Solution

The fourth proportional to 7,285.28, 10,929.54 and 2,090.76 is: 3,136.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,285.28 : 10,929.54 = 2,090.76 : x
  2. Step 2: Convert to fraction form
    7,285.28/10,929.54 = 2,090.76/x
  3. Step 3: Cross multiply
    7,285.28x = 10,929.54 × 2,090.76
  4. Step 4: Simplify right side
    7,285.28x = 22,851,045.05
  5. Step 5: Solve for x
    x = 22,851,045.05/7,285.28
  6. Step 6: Final answer
    x = 3,136.60

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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.