Home / 3,605.46-4,975.78-2,012.40

Finding the Fourth Proportional to 3,605.46, 4,975.78 and 2,012.40

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Solution

The fourth proportional to 3,605.46, 4,975.78 and 2,012.40 is: 2,777.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,605.46 : 4,975.78 = 2,012.40 : x
  2. Step 2: Convert to fraction form
    3,605.46/4,975.78 = 2,012.40/x
  3. Step 3: Cross multiply
    3,605.46x = 4,975.78 × 2,012.40
  4. Step 4: Simplify right side
    3,605.46x = 10,013,259.67
  5. Step 5: Solve for x
    x = 10,013,259.67/3,605.46
  6. Step 6: Final answer
    x = 2,777.25

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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.