Home / 6,222.87-8,587.53-3,390.24

Finding the Fourth Proportional to 6,222.87, 8,587.53 and 3,390.24

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Solution

The fourth proportional to 6,222.87, 8,587.53 and 3,390.24 is: 4,678.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,222.87 : 8,587.53 = 3,390.24 : x
  2. Step 2: Convert to fraction form
    6,222.87/8,587.53 = 3,390.24/x
  3. Step 3: Cross multiply
    6,222.87x = 8,587.53 × 3,390.24
  4. Step 4: Simplify right side
    6,222.87x = 29,113,749.29
  5. Step 5: Solve for x
    x = 29,113,749.29/6,222.87
  6. Step 6: Final answer
    x = 4,678.51

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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.