Home / 7,068.98-10,603.74-2,139.05

Finding the Fourth Proportional to 7,068.98, 10,603.74 and 2,139.05

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Solution

The fourth proportional to 7,068.98, 10,603.74 and 2,139.05 is: 3,208.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,068.98 : 10,603.74 = 2,139.05 : x
  2. Step 2: Convert to fraction form
    7,068.98/10,603.74 = 2,139.05/x
  3. Step 3: Cross multiply
    7,068.98x = 10,603.74 × 2,139.05
  4. Step 4: Simplify right side
    7,068.98x = 22,681,930.05
  5. Step 5: Solve for x
    x = 22,681,930.05/7,068.98
  6. Step 6: Final answer
    x = 3,208.66

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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.