Home / 3,085.13-4,627.70-1,785.89

Finding the Fourth Proportional to 3,085.13, 4,627.70 and 1,785.89

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Solution

The fourth proportional to 3,085.13, 4,627.70 and 1,785.89 is: 2,678.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,085.13 : 4,627.70 = 1,785.89 : x
  2. Step 2: Convert to fraction form
    3,085.13/4,627.70 = 1,785.89/x
  3. Step 3: Cross multiply
    3,085.13x = 4,627.70 × 1,785.89
  4. Step 4: Simplify right side
    3,085.13x = 8,264,554.22
  5. Step 5: Solve for x
    x = 8,264,554.22/3,085.13
  6. Step 6: Final answer
    x = 2,678.84

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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.