Home / 4,740.98-7,112.63-2,143.22

Finding the Fourth Proportional to 4,740.98, 7,112.63 and 2,143.22

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Solution

The fourth proportional to 4,740.98, 7,112.63 and 2,143.22 is: 3,215.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,740.98 : 7,112.63 = 2,143.22 : x
  2. Step 2: Convert to fraction form
    4,740.98/7,112.63 = 2,143.22/x
  3. Step 3: Cross multiply
    4,740.98x = 7,112.63 × 2,143.22
  4. Step 4: Simplify right side
    4,740.98x = 15,243,900.66
  5. Step 5: Solve for x
    x = 15,243,900.66/4,740.98
  6. Step 6: Final answer
    x = 3,215.35

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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.