Home / 7,946.93-11,920.98-2,103.50

Finding the Fourth Proportional to 7,946.93, 11,920.98 and 2,103.50

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Solution

The fourth proportional to 7,946.93, 11,920.98 and 2,103.50 is: 3,155.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,946.93 : 11,920.98 = 2,103.50 : x
  2. Step 2: Convert to fraction form
    7,946.93/11,920.98 = 2,103.50/x
  3. Step 3: Cross multiply
    7,946.93x = 11,920.98 × 2,103.50
  4. Step 4: Simplify right side
    7,946.93x = 25,075,781.43
  5. Step 5: Solve for x
    x = 25,075,781.43/7,946.93
  6. Step 6: Final answer
    x = 3,155.40

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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.