Home / 4,085.74-6,128.61-2,855.53

Finding the Fourth Proportional to 4,085.74, 6,128.61 and 2,855.53

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Solution

The fourth proportional to 4,085.74, 6,128.61 and 2,855.53 is: 4,283.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,085.74 : 6,128.61 = 2,855.53 : x
  2. Step 2: Convert to fraction form
    4,085.74/6,128.61 = 2,855.53/x
  3. Step 3: Cross multiply
    4,085.74x = 6,128.61 × 2,855.53
  4. Step 4: Simplify right side
    4,085.74x = 17,500,429.71
  5. Step 5: Solve for x
    x = 17,500,429.71/4,085.74
  6. Step 6: Final answer
    x = 4,283.30

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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.