Home / 1,307.50-1,961.16-383.03

Finding the Fourth Proportional to 1,307.50, 1,961.16 and 383.03

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Solution

The fourth proportional to 1,307.50, 1,961.16 and 383.03 is: 574.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,307.50 : 1,961.16 = 383.03 : x
  2. Step 2: Convert to fraction form
    1,307.50/1,961.16 = 383.03/x
  3. Step 3: Cross multiply
    1,307.50x = 1,961.16 × 383.03
  4. Step 4: Simplify right side
    1,307.50x = 751,179.23
  5. Step 5: Solve for x
    x = 751,179.23/1,307.50
  6. Step 6: Final answer
    x = 574.52

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Half scale
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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.