Home / 2,045.10-2,821.23-1,258.86

Finding the Fourth Proportional to 2,045.10, 2,821.23 and 1,258.86

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Solution

The fourth proportional to 2,045.10, 2,821.23 and 1,258.86 is: 1,736.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,045.10 : 2,821.23 = 1,258.86 : x
  2. Step 2: Convert to fraction form
    2,045.10/2,821.23 = 1,258.86/x
  3. Step 3: Cross multiply
    2,045.10x = 2,821.23 × 1,258.86
  4. Step 4: Simplify right side
    2,045.10x = 3,551,533.60
  5. Step 5: Solve for x
    x = 3,551,533.60/2,045.10
  6. Step 6: Final answer
    x = 1,736.61

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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.