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Finding the Fourth Proportional to 7,798.79, 11,697.98 and 1,955.45

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Solution

The fourth proportional to 7,798.79, 11,697.98 and 1,955.45 is: 2,933.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,798.79 : 11,697.98 = 1,955.45 : x
  2. Step 2: Convert to fraction form
    7,798.79/11,697.98 = 1,955.45/x
  3. Step 3: Cross multiply
    7,798.79x = 11,697.98 × 1,955.45
  4. Step 4: Simplify right side
    7,798.79x = 22,874,746.72
  5. Step 5: Solve for x
    x = 22,874,746.72/7,798.79
  6. Step 6: Final answer
    x = 2,933.12

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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.