Home / 1,617.35-2,424.96-784.19

Finding the Fourth Proportional to 1,617.35, 2,424.96 and 784.19

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Solution

The fourth proportional to 1,617.35, 2,424.96 and 784.19 is: 1,175.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,617.35 : 2,424.96 = 784.19 : x
  2. Step 2: Convert to fraction form
    1,617.35/2,424.96 = 784.19/x
  3. Step 3: Cross multiply
    1,617.35x = 2,424.96 × 784.19
  4. Step 4: Simplify right side
    1,617.35x = 1,901,629.38
  5. Step 5: Solve for x
    x = 1,901,629.38/1,617.35
  6. Step 6: Final answer
    x = 1,175.77

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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.