Home / 6,485.48-8,930.34-5,435.72

Finding the Fourth Proportional to 6,485.48, 8,930.34 and 5,435.72

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Solution

The fourth proportional to 6,485.48, 8,930.34 and 5,435.72 is: 7,484.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,485.48 : 8,930.34 = 5,435.72 : x
  2. Step 2: Convert to fraction form
    6,485.48/8,930.34 = 5,435.72/x
  3. Step 3: Cross multiply
    6,485.48x = 8,930.34 × 5,435.72
  4. Step 4: Simplify right side
    6,485.48x = 48,542,827.74
  5. Step 5: Solve for x
    x = 48,542,827.74/6,485.48
  6. Step 6: Final answer
    x = 7,484.85

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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.