Home / 7,219.47-10,830.57-2,290.35

Finding the Fourth Proportional to 7,219.47, 10,830.57 and 2,290.35

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Solution

The fourth proportional to 7,219.47, 10,830.57 and 2,290.35 is: 3,435.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,219.47 : 10,830.57 = 2,290.35 : x
  2. Step 2: Convert to fraction form
    7,219.47/10,830.57 = 2,290.35/x
  3. Step 3: Cross multiply
    7,219.47x = 10,830.57 × 2,290.35
  4. Step 4: Simplify right side
    7,219.47x = 24,805,730.39
  5. Step 5: Solve for x
    x = 24,805,730.39/7,219.47
  6. Step 6: Final answer
    x = 3,435.95

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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.