Home / 7,119.84-9,826.02-3,933.81

Finding the Fourth Proportional to 7,119.84, 9,826.02 and 3,933.81

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Solution

The fourth proportional to 7,119.84, 9,826.02 and 3,933.81 is: 5,429.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,119.84 : 9,826.02 = 3,933.81 : x
  2. Step 2: Convert to fraction form
    7,119.84/9,826.02 = 3,933.81/x
  3. Step 3: Cross multiply
    7,119.84x = 9,826.02 × 3,933.81
  4. Step 4: Simplify right side
    7,119.84x = 38,653,695.74
  5. Step 5: Solve for x
    x = 38,653,695.74/7,119.84
  6. Step 6: Final answer
    x = 5,429.01

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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.