Home / 2,386.77-3,579.67-1,087.93

Finding the Fourth Proportional to 2,386.77, 3,579.67 and 1,087.93

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Solution

The fourth proportional to 2,386.77, 3,579.67 and 1,087.93 is: 1,631.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,386.77 : 3,579.67 = 1,087.93 : x
  2. Step 2: Convert to fraction form
    2,386.77/3,579.67 = 1,087.93/x
  3. Step 3: Cross multiply
    2,386.77x = 3,579.67 × 1,087.93
  4. Step 4: Simplify right side
    2,386.77x = 3,894,430.38
  5. Step 5: Solve for x
    x = 3,894,430.38/2,386.77
  6. Step 6: Final answer
    x = 1,631.67

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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.