Home / 4,725.12-7,087.75-1,647.12

Finding the Fourth Proportional to 4,725.12, 7,087.75 and 1,647.12

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Solution

The fourth proportional to 4,725.12, 7,087.75 and 1,647.12 is: 2,470.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,725.12 : 7,087.75 = 1,647.12 : x
  2. Step 2: Convert to fraction form
    4,725.12/7,087.75 = 1,647.12/x
  3. Step 3: Cross multiply
    4,725.12x = 7,087.75 × 1,647.12
  4. Step 4: Simplify right side
    4,725.12x = 11,674,374.78
  5. Step 5: Solve for x
    x = 11,674,374.78/4,725.12
  6. Step 6: Final answer
    x = 2,470.70

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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.