Home / 5,137.39-7,089.63-2,899.36

Finding the Fourth Proportional to 5,137.39, 7,089.63 and 2,899.36

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Solution

The fourth proportional to 5,137.39, 7,089.63 and 2,899.36 is: 4,001.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,137.39 : 7,089.63 = 2,899.36 : x
  2. Step 2: Convert to fraction form
    5,137.39/7,089.63 = 2,899.36/x
  3. Step 3: Cross multiply
    5,137.39x = 7,089.63 × 2,899.36
  4. Step 4: Simplify right side
    5,137.39x = 20,555,389.64
  5. Step 5: Solve for x
    x = 20,555,389.64/5,137.39
  6. Step 6: Final answer
    x = 4,001.13

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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.