Home / 5,785.42-8,678.05-1,402.84

Finding the Fourth Proportional to 5,785.42, 8,678.05 and 1,402.84

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Solution

The fourth proportional to 5,785.42, 8,678.05 and 1,402.84 is: 2,104.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,785.42 : 8,678.05 = 1,402.84 : x
  2. Step 2: Convert to fraction form
    5,785.42/8,678.05 = 1,402.84/x
  3. Step 3: Cross multiply
    5,785.42x = 8,678.05 × 1,402.84
  4. Step 4: Simplify right side
    5,785.42x = 12,173,915.66
  5. Step 5: Solve for x
    x = 12,173,915.66/5,785.42
  6. Step 6: Final answer
    x = 2,104.24

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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.