Home / 5,653.33-7,800.78-3,135.45

Finding the Fourth Proportional to 5,653.33, 7,800.78 and 3,135.45

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Solution

The fourth proportional to 5,653.33, 7,800.78 and 3,135.45 is: 4,326.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,653.33 : 7,800.78 = 3,135.45 : x
  2. Step 2: Convert to fraction form
    5,653.33/7,800.78 = 3,135.45/x
  3. Step 3: Cross multiply
    5,653.33x = 7,800.78 × 3,135.45
  4. Step 4: Simplify right side
    5,653.33x = 24,458,955.65
  5. Step 5: Solve for x
    x = 24,458,955.65/5,653.33
  6. Step 6: Final answer
    x = 4,326.47

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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.