Home / 3,106.76-4,281.72-2,518.70

Finding the Fourth Proportional to 3,106.76, 4,281.72 and 2,518.70

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Solution

The fourth proportional to 3,106.76, 4,281.72 and 2,518.70 is: 3,471.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,106.76 : 4,281.72 = 2,518.70 : x
  2. Step 2: Convert to fraction form
    3,106.76/4,281.72 = 2,518.70/x
  3. Step 3: Cross multiply
    3,106.76x = 4,281.72 × 2,518.70
  4. Step 4: Simplify right side
    3,106.76x = 10,784,368.16
  5. Step 5: Solve for x
    x = 10,784,368.16/3,106.76
  6. Step 6: Final answer
    x = 3,471.26

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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.