Home / 3,987.41-5,501.79-2,495.79

Finding the Fourth Proportional to 3,987.41, 5,501.79 and 2,495.79

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Solution

The fourth proportional to 3,987.41, 5,501.79 and 2,495.79 is: 3,443.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,987.41 : 5,501.79 = 2,495.79 : x
  2. Step 2: Convert to fraction form
    3,987.41/5,501.79 = 2,495.79/x
  3. Step 3: Cross multiply
    3,987.41x = 5,501.79 × 2,495.79
  4. Step 4: Simplify right side
    3,987.41x = 13,731,312.46
  5. Step 5: Solve for x
    x = 13,731,312.46/3,987.41
  6. Step 6: Final answer
    x = 3,443.67

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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.