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Finding the Fourth Proportional to 2,642.90, 3,652.02 and 2,514.80

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Solution

The fourth proportional to 2,642.90, 3,652.02 and 2,514.80 is: 3,475.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,642.90 : 3,652.02 = 2,514.80 : x
  2. Step 2: Convert to fraction form
    2,642.90/3,652.02 = 2,514.80/x
  3. Step 3: Cross multiply
    2,642.90x = 3,652.02 × 2,514.80
  4. Step 4: Simplify right side
    2,642.90x = 9,184,099.90
  5. Step 5: Solve for x
    x = 9,184,099.90/2,642.90
  6. Step 6: Final answer
    x = 3,475.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.