Home / 7,104.64-9,804.30-4,120.40

Finding the Fourth Proportional to 7,104.64, 9,804.30 and 4,120.40

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Solution

The fourth proportional to 7,104.64, 9,804.30 and 4,120.40 is: 5,686.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,104.64 : 9,804.30 = 4,120.40 : x
  2. Step 2: Convert to fraction form
    7,104.64/9,804.30 = 4,120.40/x
  3. Step 3: Cross multiply
    7,104.64x = 9,804.30 × 4,120.40
  4. Step 4: Simplify right side
    7,104.64x = 40,397,637.72
  5. Step 5: Solve for x
    x = 40,397,637.72/7,104.64
  6. Step 6: Final answer
    x = 5,686.09

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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.