Home / 3,011.60-4,152.12-1,962.56

Finding the Fourth Proportional to 3,011.60, 4,152.12 and 1,962.56

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Solution

The fourth proportional to 3,011.60, 4,152.12 and 1,962.56 is: 2,705.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,011.60 : 4,152.12 = 1,962.56 : x
  2. Step 2: Convert to fraction form
    3,011.60/4,152.12 = 1,962.56/x
  3. Step 3: Cross multiply
    3,011.60x = 4,152.12 × 1,962.56
  4. Step 4: Simplify right side
    3,011.60x = 8,148,784.63
  5. Step 5: Solve for x
    x = 8,148,784.63/3,011.60
  6. Step 6: Final answer
    x = 2,705.80

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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.