Home / 5,685.12-7,849.34-3,561.53

Finding the Fourth Proportional to 5,685.12, 7,849.34 and 3,561.53

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Solution

The fourth proportional to 5,685.12, 7,849.34 and 3,561.53 is: 4,917.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,685.12 : 7,849.34 = 3,561.53 : x
  2. Step 2: Convert to fraction form
    5,685.12/7,849.34 = 3,561.53/x
  3. Step 3: Cross multiply
    5,685.12x = 7,849.34 × 3,561.53
  4. Step 4: Simplify right side
    5,685.12x = 27,955,642.08
  5. Step 5: Solve for x
    x = 27,955,642.08/5,685.12
  6. Step 6: Final answer
    x = 4,917.34

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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.