Home / 4,638.90-6,400.98-2,649.09

Finding the Fourth Proportional to 4,638.90, 6,400.98 and 2,649.09

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Solution

The fourth proportional to 4,638.90, 6,400.98 and 2,649.09 is: 3,655.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,638.90 : 6,400.98 = 2,649.09 : x
  2. Step 2: Convert to fraction form
    4,638.90/6,400.98 = 2,649.09/x
  3. Step 3: Cross multiply
    4,638.90x = 6,400.98 × 2,649.09
  4. Step 4: Simplify right side
    4,638.90x = 16,956,772.11
  5. Step 5: Solve for x
    x = 16,956,772.11/4,638.90
  6. Step 6: Final answer
    x = 3,655.34

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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.