Home / 3,780.56-5,670.84-1,007.45

Finding the Fourth Proportional to 3,780.56, 5,670.84 and 1,007.45

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Solution

The fourth proportional to 3,780.56, 5,670.84 and 1,007.45 is: 1,511.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.56 : 5,670.84 = 1,007.45 : x
  2. Step 2: Convert to fraction form
    3,780.56/5,670.84 = 1,007.45/x
  3. Step 3: Cross multiply
    3,780.56x = 5,670.84 × 1,007.45
  4. Step 4: Simplify right side
    3,780.56x = 5,713,059.40
  5. Step 5: Solve for x
    x = 5,713,059.40/3,780.56
  6. Step 6: Final answer
    x = 1,511.17

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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.