Home / 7,212.70-10,805.02-4,740.07

Finding the Fourth Proportional to 7,212.70, 10,805.02 and 4,740.07

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Solution

The fourth proportional to 7,212.70, 10,805.02 and 4,740.07 is: 7,100.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,212.70 : 10,805.02 = 4,740.07 : x
  2. Step 2: Convert to fraction form
    7,212.70/10,805.02 = 4,740.07/x
  3. Step 3: Cross multiply
    7,212.70x = 10,805.02 × 4,740.07
  4. Step 4: Simplify right side
    7,212.70x = 51,216,551.15
  5. Step 5: Solve for x
    x = 51,216,551.15/7,212.70
  6. Step 6: Final answer
    x = 7,100.88

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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.