Home / 2,457.80-3,658.91-2,443.21

Finding the Fourth Proportional to 2,457.80, 3,658.91 and 2,443.21

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Solution

The fourth proportional to 2,457.80, 3,658.91 and 2,443.21 is: 3,637.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,457.80 : 3,658.91 = 2,443.21 : x
  2. Step 2: Convert to fraction form
    2,457.80/3,658.91 = 2,443.21/x
  3. Step 3: Cross multiply
    2,457.80x = 3,658.91 × 2,443.21
  4. Step 4: Simplify right side
    2,457.80x = 8,939,464.14
  5. Step 5: Solve for x
    x = 8,939,464.14/2,457.80
  6. Step 6: Final answer
    x = 3,637.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.