Home / 2,386.45-3,574.81-2,140.62

Finding the Fourth Proportional to 2,386.45, 3,574.81 and 2,140.62

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Solution

The fourth proportional to 2,386.45, 3,574.81 and 2,140.62 is: 3,206.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,386.45 : 3,574.81 = 2,140.62 : x
  2. Step 2: Convert to fraction form
    2,386.45/3,574.81 = 2,140.62/x
  3. Step 3: Cross multiply
    2,386.45x = 3,574.81 × 2,140.62
  4. Step 4: Simplify right side
    2,386.45x = 7,652,309.78
  5. Step 5: Solve for x
    x = 7,652,309.78/2,386.45
  6. Step 6: Final answer
    x = 3,206.57

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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.