Home / 3,630.84-5,011.90-2,305.40

Finding the Fourth Proportional to 3,630.84, 5,011.90 and 2,305.40

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Solution

The fourth proportional to 3,630.84, 5,011.90 and 2,305.40 is: 3,182.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,630.84 : 5,011.90 = 2,305.40 : x
  2. Step 2: Convert to fraction form
    3,630.84/5,011.90 = 2,305.40/x
  3. Step 3: Cross multiply
    3,630.84x = 5,011.90 × 2,305.40
  4. Step 4: Simplify right side
    3,630.84x = 11,554,434.26
  5. Step 5: Solve for x
    x = 11,554,434.26/3,630.84
  6. Step 6: Final answer
    x = 3,182.30

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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.