Home / 6,402.48-8,835.08-4,129.84

Finding the Fourth Proportional to 6,402.48, 8,835.08 and 4,129.84

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Solution

The fourth proportional to 6,402.48, 8,835.08 and 4,129.84 is: 5,698.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,402.48 : 8,835.08 = 4,129.84 : x
  2. Step 2: Convert to fraction form
    6,402.48/8,835.08 = 4,129.84/x
  3. Step 3: Cross multiply
    6,402.48x = 8,835.08 × 4,129.84
  4. Step 4: Simplify right side
    6,402.48x = 36,487,466.79
  5. Step 5: Solve for x
    x = 36,487,466.79/6,402.48
  6. Step 6: Final answer
    x = 5,698.96

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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.