Home / 1,803.78-2,493.45-1,284.30

Finding the Fourth Proportional to 1,803.78, 2,493.45 and 1,284.30

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Solution

The fourth proportional to 1,803.78, 2,493.45 and 1,284.30 is: 1,775.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,803.78 : 2,493.45 = 1,284.30 : x
  2. Step 2: Convert to fraction form
    1,803.78/2,493.45 = 1,284.30/x
  3. Step 3: Cross multiply
    1,803.78x = 2,493.45 × 1,284.30
  4. Step 4: Simplify right side
    1,803.78x = 3,202,337.84
  5. Step 5: Solve for x
    x = 3,202,337.84/1,803.78
  6. Step 6: Final answer
    x = 1,775.35

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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.