Home / 1,756.90-2,631.30-1,206.10

Finding the Fourth Proportional to 1,756.90, 2,631.30 and 1,206.10

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Solution

The fourth proportional to 1,756.90, 2,631.30 and 1,206.10 is: 1,806.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,756.90 : 2,631.30 = 1,206.10 : x
  2. Step 2: Convert to fraction form
    1,756.90/2,631.30 = 1,206.10/x
  3. Step 3: Cross multiply
    1,756.90x = 2,631.30 × 1,206.10
  4. Step 4: Simplify right side
    1,756.90x = 3,173,610.93
  5. Step 5: Solve for x
    x = 3,173,610.93/1,756.90
  6. Step 6: Final answer
    x = 1,806.37

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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.