Home / 4,068.90-5,615.13-2,205.90

Finding the Fourth Proportional to 4,068.90, 5,615.13 and 2,205.90

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Solution

The fourth proportional to 4,068.90, 5,615.13 and 2,205.90 is: 3,044.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,068.90 : 5,615.13 = 2,205.90 : x
  2. Step 2: Convert to fraction form
    4,068.90/5,615.13 = 2,205.90/x
  3. Step 3: Cross multiply
    4,068.90x = 5,615.13 × 2,205.90
  4. Step 4: Simplify right side
    4,068.90x = 12,386,415.27
  5. Step 5: Solve for x
    x = 12,386,415.27/4,068.90
  6. Step 6: Final answer
    x = 3,044.17

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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.