Home / 2,386.06-3,578.67-654.22

Finding the Fourth Proportional to 2,386.06, 3,578.67 and 654.22

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Solution

The fourth proportional to 2,386.06, 3,578.67 and 654.22 is: 981.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,386.06 : 3,578.67 = 654.22 : x
  2. Step 2: Convert to fraction form
    2,386.06/3,578.67 = 654.22/x
  3. Step 3: Cross multiply
    2,386.06x = 3,578.67 × 654.22
  4. Step 4: Simplify right side
    2,386.06x = 2,341,237.49
  5. Step 5: Solve for x
    x = 2,341,237.49/2,386.06
  6. Step 6: Final answer
    x = 981.21

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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.