Home / 2,728.79-4,087.02-1,803.07

Finding the Fourth Proportional to 2,728.79, 4,087.02 and 1,803.07

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Solution

The fourth proportional to 2,728.79, 4,087.02 and 1,803.07 is: 2,700.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,728.79 : 4,087.02 = 1,803.07 : x
  2. Step 2: Convert to fraction form
    2,728.79/4,087.02 = 1,803.07/x
  3. Step 3: Cross multiply
    2,728.79x = 4,087.02 × 1,803.07
  4. Step 4: Simplify right side
    2,728.79x = 7,369,162.72
  5. Step 5: Solve for x
    x = 7,369,162.72/2,728.79
  6. Step 6: Final answer
    x = 2,700.53

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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.