Home / 4,130.90-6,197.31-1,209.26

Finding the Fourth Proportional to 4,130.90, 6,197.31 and 1,209.26

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Solution

The fourth proportional to 4,130.90, 6,197.31 and 1,209.26 is: 1,814.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,130.90 : 6,197.31 = 1,209.26 : x
  2. Step 2: Convert to fraction form
    4,130.90/6,197.31 = 1,209.26/x
  3. Step 3: Cross multiply
    4,130.90x = 6,197.31 × 1,209.26
  4. Step 4: Simplify right side
    4,130.90x = 7,494,159.09
  5. Step 5: Solve for x
    x = 7,494,159.09/4,130.90
  6. Step 6: Final answer
    x = 1,814.17

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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.