Home / 2,110.95-2,915.46-1,782.09

Finding the Fourth Proportional to 2,110.95, 2,915.46 and 1,782.09

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Solution

The fourth proportional to 2,110.95, 2,915.46 and 1,782.09 is: 2,461.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,110.95 : 2,915.46 = 1,782.09 : x
  2. Step 2: Convert to fraction form
    2,110.95/2,915.46 = 1,782.09/x
  3. Step 3: Cross multiply
    2,110.95x = 2,915.46 × 1,782.09
  4. Step 4: Simplify right side
    2,110.95x = 5,195,612.11
  5. Step 5: Solve for x
    x = 5,195,612.11/2,110.95
  6. Step 6: Final answer
    x = 2,461.27

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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.