Home / 6,390.10-8,818.32-3,595.60

Finding the Fourth Proportional to 6,390.10, 8,818.32 and 3,595.60

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Solution

The fourth proportional to 6,390.10, 8,818.32 and 3,595.60 is: 4,961.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,390.10 : 8,818.32 = 3,595.60 : x
  2. Step 2: Convert to fraction form
    6,390.10/8,818.32 = 3,595.60/x
  3. Step 3: Cross multiply
    6,390.10x = 8,818.32 × 3,595.60
  4. Step 4: Simplify right side
    6,390.10x = 31,707,151.39
  5. Step 5: Solve for x
    x = 31,707,151.39/6,390.10
  6. Step 6: Final answer
    x = 4,961.92

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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.