Home / 5,253.81-7,881.66-1,790.25

Finding the Fourth Proportional to 5,253.81, 7,881.66 and 1,790.25

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Solution

The fourth proportional to 5,253.81, 7,881.66 and 1,790.25 is: 2,685.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,253.81 : 7,881.66 = 1,790.25 : x
  2. Step 2: Convert to fraction form
    5,253.81/7,881.66 = 1,790.25/x
  3. Step 3: Cross multiply
    5,253.81x = 7,881.66 × 1,790.25
  4. Step 4: Simplify right side
    5,253.81x = 14,110,141.82
  5. Step 5: Solve for x
    x = 14,110,141.82/5,253.81
  6. Step 6: Final answer
    x = 2,685.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.