Home / 1,637.77-2,457.84-1,228.01

Finding the Fourth Proportional to 1,637.77, 2,457.84 and 1,228.01

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Solution

The fourth proportional to 1,637.77, 2,457.84 and 1,228.01 is: 1,842.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,637.77 : 2,457.84 = 1,228.01 : x
  2. Step 2: Convert to fraction form
    1,637.77/2,457.84 = 1,228.01/x
  3. Step 3: Cross multiply
    1,637.77x = 2,457.84 × 1,228.01
  4. Step 4: Simplify right side
    1,637.77x = 3,018,233.67
  5. Step 5: Solve for x
    x = 3,018,233.67/1,637.77
  6. Step 6: Final answer
    x = 1,842.90

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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.