Home / 2,085.45-2,877.44-1,423.68

Finding the Fourth Proportional to 2,085.45, 2,877.44 and 1,423.68

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Solution

The fourth proportional to 2,085.45, 2,877.44 and 1,423.68 is: 1,964.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,085.45 : 2,877.44 = 1,423.68 : x
  2. Step 2: Convert to fraction form
    2,085.45/2,877.44 = 1,423.68/x
  3. Step 3: Cross multiply
    2,085.45x = 2,877.44 × 1,423.68
  4. Step 4: Simplify right side
    2,085.45x = 4,096,546.66
  5. Step 5: Solve for x
    x = 4,096,546.66/2,085.45
  6. Step 6: Final answer
    x = 1,964.35

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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.