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Finding the Fourth Proportional to 2,854.56, 4,281.84 and 1,555.68

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Solution

The fourth proportional to 2,854.56, 4,281.84 and 1,555.68 is: 2,333.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,854.56 : 4,281.84 = 1,555.68 : x
  2. Step 2: Convert to fraction form
    2,854.56/4,281.84 = 1,555.68/x
  3. Step 3: Cross multiply
    2,854.56x = 4,281.84 × 1,555.68
  4. Step 4: Simplify right side
    2,854.56x = 6,661,172.85
  5. Step 5: Solve for x
    x = 6,661,172.85/2,854.56
  6. Step 6: Final answer
    x = 2,333.52

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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.