Home / 1,057.42-1,579.09-1,045.96

Finding the Fourth Proportional to 1,057.42, 1,579.09 and 1,045.96

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Solution

The fourth proportional to 1,057.42, 1,579.09 and 1,045.96 is: 1,561.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,057.42 : 1,579.09 = 1,045.96 : x
  2. Step 2: Convert to fraction form
    1,057.42/1,579.09 = 1,045.96/x
  3. Step 3: Cross multiply
    1,057.42x = 1,579.09 × 1,045.96
  4. Step 4: Simplify right side
    1,057.42x = 1,651,664.98
  5. Step 5: Solve for x
    x = 1,651,664.98/1,057.42
  6. Step 6: Final answer
    x = 1,561.98

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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.