Home / 3,210.67-4,425.42-2,931.85

Finding the Fourth Proportional to 3,210.67, 4,425.42 and 2,931.85

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Solution

The fourth proportional to 3,210.67, 4,425.42 and 2,931.85 is: 4,041.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210.67 : 4,425.42 = 2,931.85 : x
  2. Step 2: Convert to fraction form
    3,210.67/4,425.42 = 2,931.85/x
  3. Step 3: Cross multiply
    3,210.67x = 4,425.42 × 2,931.85
  4. Step 4: Simplify right side
    3,210.67x = 12,974,667.63
  5. Step 5: Solve for x
    x = 12,974,667.63/3,210.67
  6. Step 6: Final answer
    x = 4,041.11

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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.