Home / 1,803.08-2,484.58-1,383.40

Finding the Fourth Proportional to 1,803.08, 2,484.58 and 1,383.40

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Solution

The fourth proportional to 1,803.08, 2,484.58 and 1,383.40 is: 1,906.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,803.08 : 2,484.58 = 1,383.40 : x
  2. Step 2: Convert to fraction form
    1,803.08/2,484.58 = 1,383.40/x
  3. Step 3: Cross multiply
    1,803.08x = 2,484.58 × 1,383.40
  4. Step 4: Simplify right side
    1,803.08x = 3,437,167.97
  5. Step 5: Solve for x
    x = 3,437,167.97/1,803.08
  6. Step 6: Final answer
    x = 1,906.28

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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.