Home / 2,386.08-3,579.12-655.20

Finding the Fourth Proportional to 2,386.08, 3,579.12 and 655.20

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Solution

The fourth proportional to 2,386.08, 3,579.12 and 655.20 is: 982.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,386.08 : 3,579.12 = 655.20 : x
  2. Step 2: Convert to fraction form
    2,386.08/3,579.12 = 655.20/x
  3. Step 3: Cross multiply
    2,386.08x = 3,579.12 × 655.20
  4. Step 4: Simplify right side
    2,386.08x = 2,345,039.42
  5. Step 5: Solve for x
    x = 2,345,039.42/2,386.08
  6. Step 6: Final answer
    x = 982.80

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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.