Home / 3,120.04-4,681.41-1,821.50

Finding the Fourth Proportional to 3,120.04, 4,681.41 and 1,821.50

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Solution

The fourth proportional to 3,120.04, 4,681.41 and 1,821.50 is: 2,733.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120.04 : 4,681.41 = 1,821.50 : x
  2. Step 2: Convert to fraction form
    3,120.04/4,681.41 = 1,821.50/x
  3. Step 3: Cross multiply
    3,120.04x = 4,681.41 × 1,821.50
  4. Step 4: Simplify right side
    3,120.04x = 8,527,212.21
  5. Step 5: Solve for x
    x = 8,527,212.21/3,120.04
  6. Step 6: Final answer
    x = 2,733.05

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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.