Home / 6,021.31-9,031.90-1,638.70

Finding the Fourth Proportional to 6,021.31, 9,031.90 and 1,638.70

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Solution

The fourth proportional to 6,021.31, 9,031.90 and 1,638.70 is: 2,458.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,021.31 : 9,031.90 = 1,638.70 : x
  2. Step 2: Convert to fraction form
    6,021.31/9,031.90 = 1,638.70/x
  3. Step 3: Cross multiply
    6,021.31x = 9,031.90 × 1,638.70
  4. Step 4: Simplify right side
    6,021.31x = 14,800,574.53
  5. Step 5: Solve for x
    x = 14,800,574.53/6,021.31
  6. Step 6: Final answer
    x = 2,458.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.