Home / 3,126.36-4,315.50-1,885.08

Finding the Fourth Proportional to 3,126.36, 4,315.50 and 1,885.08

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Solution

The fourth proportional to 3,126.36, 4,315.50 and 1,885.08 is: 2,602.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.36 : 4,315.50 = 1,885.08 : x
  2. Step 2: Convert to fraction form
    3,126.36/4,315.50 = 1,885.08/x
  3. Step 3: Cross multiply
    3,126.36x = 4,315.50 × 1,885.08
  4. Step 4: Simplify right side
    3,126.36x = 8,135,062.74
  5. Step 5: Solve for x
    x = 8,135,062.74/3,126.36
  6. Step 6: Final answer
    x = 2,602.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.