Home / 7,074.51-9,762.39-4,089.72

Finding the Fourth Proportional to 7,074.51, 9,762.39 and 4,089.72

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Solution

The fourth proportional to 7,074.51, 9,762.39 and 4,089.72 is: 5,643.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,074.51 : 9,762.39 = 4,089.72 : x
  2. Step 2: Convert to fraction form
    7,074.51/9,762.39 = 4,089.72/x
  3. Step 3: Cross multiply
    7,074.51x = 9,762.39 × 4,089.72
  4. Step 4: Simplify right side
    7,074.51x = 39,925,441.63
  5. Step 5: Solve for x
    x = 39,925,441.63/7,074.51
  6. Step 6: Final answer
    x = 5,643.56

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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.