Home / 2,457.08-3,390.92-1,408.92

Finding the Fourth Proportional to 2,457.08, 3,390.92 and 1,408.92

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Solution

The fourth proportional to 2,457.08, 3,390.92 and 1,408.92 is: 1,944.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,457.08 : 3,390.92 = 1,408.92 : x
  2. Step 2: Convert to fraction form
    2,457.08/3,390.92 = 1,408.92/x
  3. Step 3: Cross multiply
    2,457.08x = 3,390.92 × 1,408.92
  4. Step 4: Simplify right side
    2,457.08x = 4,777,535.01
  5. Step 5: Solve for x
    x = 4,777,535.01/2,457.08
  6. Step 6: Final answer
    x = 1,944.40

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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.