Home / 5,616.27-8,421.72-1,917.51

Finding the Fourth Proportional to 5,616.27, 8,421.72 and 1,917.51

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Solution

The fourth proportional to 5,616.27, 8,421.72 and 1,917.51 is: 2,875.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,616.27 : 8,421.72 = 1,917.51 : x
  2. Step 2: Convert to fraction form
    5,616.27/8,421.72 = 1,917.51/x
  3. Step 3: Cross multiply
    5,616.27x = 8,421.72 × 1,917.51
  4. Step 4: Simplify right side
    5,616.27x = 16,148,704.33
  5. Step 5: Solve for x
    x = 16,148,704.33/5,616.27
  6. Step 6: Final answer
    x = 2,875.34

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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.