Home / 2,424.25-3,637.08-780.76

Finding the Fourth Proportional to 2,424.25, 3,637.08 and 780.76

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Solution

The fourth proportional to 2,424.25, 3,637.08 and 780.76 is: 1,171.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,424.25 : 3,637.08 = 780.76 : x
  2. Step 2: Convert to fraction form
    2,424.25/3,637.08 = 780.76/x
  3. Step 3: Cross multiply
    2,424.25x = 3,637.08 × 780.76
  4. Step 4: Simplify right side
    2,424.25x = 2,839,664.49
  5. Step 5: Solve for x
    x = 2,839,664.49/2,424.25
  6. Step 6: Final answer
    x = 1,171.36

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1.5x scale

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.