Home / 7,089.12-9,782.52-4,104.72

Finding the Fourth Proportional to 7,089.12, 9,782.52 and 4,104.72

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Solution

The fourth proportional to 7,089.12, 9,782.52 and 4,104.72 is: 5,664.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,089.12 : 9,782.52 = 4,104.72 : x
  2. Step 2: Convert to fraction form
    7,089.12/9,782.52 = 4,104.72/x
  3. Step 3: Cross multiply
    7,089.12x = 9,782.52 × 4,104.72
  4. Step 4: Simplify right side
    7,089.12x = 40,154,505.49
  5. Step 5: Solve for x
    x = 40,154,505.49/7,089.12
  6. Step 6: Final answer
    x = 5,664.24

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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.