Home / 7,068.77-10,605.06-2,138.57

Finding the Fourth Proportional to 7,068.77, 10,605.06 and 2,138.57

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Solution

The fourth proportional to 7,068.77, 10,605.06 and 2,138.57 is: 3,208.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,068.77 : 10,605.06 = 2,138.57 : x
  2. Step 2: Convert to fraction form
    7,068.77/10,605.06 = 2,138.57/x
  3. Step 3: Cross multiply
    7,068.77x = 10,605.06 × 2,138.57
  4. Step 4: Simplify right side
    7,068.77x = 22,679,649.91
  5. Step 5: Solve for x
    x = 22,679,649.91/7,068.77
  6. Step 6: Final answer
    x = 3,208.43

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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.