Home / 2,386.26-3,578.40-2,140.25

Finding the Fourth Proportional to 2,386.26, 3,578.40 and 2,140.25

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Solution

The fourth proportional to 2,386.26, 3,578.40 and 2,140.25 is: 3,209.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,386.26 : 3,578.40 = 2,140.25 : x
  2. Step 2: Convert to fraction form
    2,386.26/3,578.40 = 2,140.25/x
  3. Step 3: Cross multiply
    2,386.26x = 3,578.40 × 2,140.25
  4. Step 4: Simplify right side
    2,386.26x = 7,658,652.71
  5. Step 5: Solve for x
    x = 7,658,652.71/2,386.26
  6. Step 6: Final answer
    x = 3,209.48

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1.5x scale

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.