Home / 5,205.39-7,808.10-2,087.10

Finding the Fourth Proportional to 5,205.39, 7,808.10 and 2,087.10

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Solution

The fourth proportional to 5,205.39, 7,808.10 and 2,087.10 is: 3,130.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,205.39 : 7,808.10 = 2,087.10 : x
  2. Step 2: Convert to fraction form
    5,205.39/7,808.10 = 2,087.10/x
  3. Step 3: Cross multiply
    5,205.39x = 7,808.10 × 2,087.10
  4. Step 4: Simplify right side
    5,205.39x = 16,296,285.51
  5. Step 5: Solve for x
    x = 16,296,285.51/5,205.39
  6. Step 6: Final answer
    x = 3,130.66

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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.