Home / 4,126.90-6,191.35-1,205.30

Finding the Fourth Proportional to 4,126.90, 6,191.35 and 1,205.30

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Solution

The fourth proportional to 4,126.90, 6,191.35 and 1,205.30 is: 1,808.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,126.90 : 6,191.35 = 1,205.30 : x
  2. Step 2: Convert to fraction form
    4,126.90/6,191.35 = 1,205.30/x
  3. Step 3: Cross multiply
    4,126.90x = 6,191.35 × 1,205.30
  4. Step 4: Simplify right side
    4,126.90x = 7,462,434.16
  5. Step 5: Solve for x
    x = 7,462,434.16/4,126.90
  6. Step 6: Final answer
    x = 1,808.24

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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.