Home / 5,785.76-8,678.57-1,403.26

Finding the Fourth Proportional to 5,785.76, 8,678.57 and 1,403.26

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Solution

The fourth proportional to 5,785.76, 8,678.57 and 1,403.26 is: 2,104.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,785.76 : 8,678.57 = 1,403.26 : x
  2. Step 2: Convert to fraction form
    5,785.76/8,678.57 = 1,403.26/x
  3. Step 3: Cross multiply
    5,785.76x = 8,678.57 × 1,403.26
  4. Step 4: Simplify right side
    5,785.76x = 12,178,261.43
  5. Step 5: Solve for x
    x = 12,178,261.43/5,785.76
  6. Step 6: Final answer
    x = 2,104.87

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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.