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Finding the Fourth Proportional to 7,003.60, 10,505.04 and 1,809.52

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Solution

The fourth proportional to 7,003.60, 10,505.04 and 1,809.52 is: 2,714.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,003.60 : 10,505.04 = 1,809.52 : x
  2. Step 2: Convert to fraction form
    7,003.60/10,505.04 = 1,809.52/x
  3. Step 3: Cross multiply
    7,003.60x = 10,505.04 × 1,809.52
  4. Step 4: Simplify right side
    7,003.60x = 19,009,079.98
  5. Step 5: Solve for x
    x = 19,009,079.98/7,003.60
  6. Step 6: Final answer
    x = 2,714.19

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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.