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Finding the Fourth Proportional to 7,970.00, 10,999.60 and 4,785.08

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Solution

The fourth proportional to 7,970.00, 10,999.60 and 4,785.08 is: 6,604.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,970.00 : 10,999.60 = 4,785.08 : x
  2. Step 2: Convert to fraction form
    7,970.00/10,999.60 = 4,785.08/x
  3. Step 3: Cross multiply
    7,970.00x = 10,999.60 × 4,785.08
  4. Step 4: Simplify right side
    7,970.00x = 52,633,899.01
  5. Step 5: Solve for x
    x = 52,633,899.01/7,970.00
  6. Step 6: Final answer
    x = 6,604.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.