Home / 5,419.59-8,126.30-2,130.88

Finding the Fourth Proportional to 5,419.59, 8,126.30 and 2,130.88

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Solution

The fourth proportional to 5,419.59, 8,126.30 and 2,130.88 is: 3,195.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,419.59 : 8,126.30 = 2,130.88 : x
  2. Step 2: Convert to fraction form
    5,419.59/8,126.30 = 2,130.88/x
  3. Step 3: Cross multiply
    5,419.59x = 8,126.30 × 2,130.88
  4. Step 4: Simplify right side
    5,419.59x = 17,316,159.49
  5. Step 5: Solve for x
    x = 17,316,159.49/5,419.59
  6. Step 6: Final answer
    x = 3,195.11

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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.