Home / 1,449.41-2,000.19-786.27

Finding the Fourth Proportional to 1,449.41, 2,000.19 and 786.27

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Solution

The fourth proportional to 1,449.41, 2,000.19 and 786.27 is: 1,085.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,449.41 : 2,000.19 = 786.27 : x
  2. Step 2: Convert to fraction form
    1,449.41/2,000.19 = 786.27/x
  3. Step 3: Cross multiply
    1,449.41x = 2,000.19 × 786.27
  4. Step 4: Simplify right side
    1,449.41x = 1,572,689.39
  5. Step 5: Solve for x
    x = 1,572,689.39/1,449.41
  6. Step 6: Final answer
    x = 1,085.05

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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.