Home / 2,687.08-4,045.54-2,457.48

Finding the Fourth Proportional to 2,687.08, 4,045.54 and 2,457.48

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Solution

The fourth proportional to 2,687.08, 4,045.54 and 2,457.48 is: 3,699.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,687.08 : 4,045.54 = 2,457.48 : x
  2. Step 2: Convert to fraction form
    2,687.08/4,045.54 = 2,457.48/x
  3. Step 3: Cross multiply
    2,687.08x = 4,045.54 × 2,457.48
  4. Step 4: Simplify right side
    2,687.08x = 9,941,833.64
  5. Step 5: Solve for x
    x = 9,941,833.64/2,687.08
  6. Step 6: Final answer
    x = 3,699.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.