Home / 4,747.12-7,117.64-1,975.70

Finding the Fourth Proportional to 4,747.12, 7,117.64 and 1,975.70

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Solution

The fourth proportional to 4,747.12, 7,117.64 and 1,975.70 is: 2,962.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,747.12 : 7,117.64 = 1,975.70 : x
  2. Step 2: Convert to fraction form
    4,747.12/7,117.64 = 1,975.70/x
  3. Step 3: Cross multiply
    4,747.12x = 7,117.64 × 1,975.70
  4. Step 4: Simplify right side
    4,747.12x = 14,062,321.35
  5. Step 5: Solve for x
    x = 14,062,321.35/4,747.12
  6. Step 6: Final answer
    x = 2,962.28

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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.