Home / 5,160-7,741.26-1,873.92

Finding the Fourth Proportional to 5,160, 7,741.26 and 1,873.92

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Solution

The fourth proportional to 5,160, 7,741.26 and 1,873.92 is: 2,811.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,160 : 7,741.26 = 1,873.92 : x
  2. Step 2: Convert to fraction form
    5,160/7,741.26 = 1,873.92/x
  3. Step 3: Cross multiply
    5,160x = 7,741.26 × 1,873.92
  4. Step 4: Simplify right side
    5,160x = 14,506,501.94
  5. Step 5: Solve for x
    x = 14,506,501.94/5,160
  6. Step 6: Final answer
    x = 2,811.34

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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.