Home / 7,068.90-10,605.02-2,138.58

Finding the Fourth Proportional to 7,068.90, 10,605.02 and 2,138.58

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Solution

The fourth proportional to 7,068.90, 10,605.02 and 2,138.58 is: 3,208.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,068.90 : 10,605.02 = 2,138.58 : x
  2. Step 2: Convert to fraction form
    7,068.90/10,605.02 = 2,138.58/x
  3. Step 3: Cross multiply
    7,068.90x = 10,605.02 × 2,138.58
  4. Step 4: Simplify right side
    7,068.90x = 22,679,672.98
  5. Step 5: Solve for x
    x = 22,679,672.98/7,068.90
  6. Step 6: Final answer
    x = 3,208.37

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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.