Home / 1,307.49-1,961.44-383.11

Finding the Fourth Proportional to 1,307.49, 1,961.44 and 383.11

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Solution

The fourth proportional to 1,307.49, 1,961.44 and 383.11 is: 574.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,307.49 : 1,961.44 = 383.11 : x
  2. Step 2: Convert to fraction form
    1,307.49/1,961.44 = 383.11/x
  3. Step 3: Cross multiply
    1,307.49x = 1,961.44 × 383.11
  4. Step 4: Simplify right side
    1,307.49x = 751,447.28
  5. Step 5: Solve for x
    x = 751,447.28/1,307.49
  6. Step 6: Final answer
    x = 574.73

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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.