Home / 6,424.50-8,865.81-3,630

Finding the Fourth Proportional to 6,424.50, 8,865.81 and 3,630

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Solution

The fourth proportional to 6,424.50, 8,865.81 and 3,630 is: 5,009.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,424.50 : 8,865.81 = 3,630 : x
  2. Step 2: Convert to fraction form
    6,424.50/8,865.81 = 3,630/x
  3. Step 3: Cross multiply
    6,424.50x = 8,865.81 × 3,630
  4. Step 4: Simplify right side
    6,424.50x = 32,182,890.30
  5. Step 5: Solve for x
    x = 32,182,890.30/6,424.50
  6. Step 6: Final answer
    x = 5,009.40

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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.