Home / 4,087.08-6,130.50-1,313.88

Finding the Fourth Proportional to 4,087.08, 6,130.50 and 1,313.88

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Solution

The fourth proportional to 4,087.08, 6,130.50 and 1,313.88 is: 1,970.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,087.08 : 6,130.50 = 1,313.88 : x
  2. Step 2: Convert to fraction form
    4,087.08/6,130.50 = 1,313.88/x
  3. Step 3: Cross multiply
    4,087.08x = 6,130.50 × 1,313.88
  4. Step 4: Simplify right side
    4,087.08x = 8,054,741.34
  5. Step 5: Solve for x
    x = 8,054,741.34/4,087.08
  6. Step 6: Final answer
    x = 1,970.78

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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.