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Finding the Fourth Proportional to 2,010.08, 3,015.12 and 549.20

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Solution

The fourth proportional to 2,010.08, 3,015.12 and 549.20 is: 823.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,010.08 : 3,015.12 = 549.20 : x
  2. Step 2: Convert to fraction form
    2,010.08/3,015.12 = 549.20/x
  3. Step 3: Cross multiply
    2,010.08x = 3,015.12 × 549.20
  4. Step 4: Simplify right side
    2,010.08x = 1,655,903.90
  5. Step 5: Solve for x
    x = 1,655,903.90/2,010.08
  6. Step 6: Final answer
    x = 823.80

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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.