Home / 4,665.90-6,438.69-2,897.64

Finding the Fourth Proportional to 4,665.90, 6,438.69 and 2,897.64

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Solution

The fourth proportional to 4,665.90, 6,438.69 and 2,897.64 is: 3,998.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,665.90 : 6,438.69 = 2,897.64 : x
  2. Step 2: Convert to fraction form
    4,665.90/6,438.69 = 2,897.64/x
  3. Step 3: Cross multiply
    4,665.90x = 6,438.69 × 2,897.64
  4. Step 4: Simplify right side
    4,665.90x = 18,657,005.69
  5. Step 5: Solve for x
    x = 18,657,005.69/4,665.90
  6. Step 6: Final answer
    x = 3,998.59

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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.