Home / 5,618.24-8,421.60-2,836.40

Finding the Fourth Proportional to 5,618.24, 8,421.60 and 2,836.40

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Solution

The fourth proportional to 5,618.24, 8,421.60 and 2,836.40 is: 4,251.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.24 : 8,421.60 = 2,836.40 : x
  2. Step 2: Convert to fraction form
    5,618.24/8,421.60 = 2,836.40/x
  3. Step 3: Cross multiply
    5,618.24x = 8,421.60 × 2,836.40
  4. Step 4: Simplify right side
    5,618.24x = 23,887,026.24
  5. Step 5: Solve for x
    x = 23,887,026.24/5,618.24
  6. Step 6: Final answer
    x = 4,251.69

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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.