Home / 1,568.18-2,163.86-904.92

Finding the Fourth Proportional to 1,568.18, 2,163.86 and 904.92

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Solution

The fourth proportional to 1,568.18, 2,163.86 and 904.92 is: 1,248.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,568.18 : 2,163.86 = 904.92 : x
  2. Step 2: Convert to fraction form
    1,568.18/2,163.86 = 904.92/x
  3. Step 3: Cross multiply
    1,568.18x = 2,163.86 × 904.92
  4. Step 4: Simplify right side
    1,568.18x = 1,958,120.19
  5. Step 5: Solve for x
    x = 1,958,120.19/1,568.18
  6. Step 6: Final answer
    x = 1,248.66

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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.