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Finding the Fourth Proportional to 1,055.96, 1,582.11 and 569.35

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Solution

The fourth proportional to 1,055.96, 1,582.11 and 569.35 is: 853.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,055.96 : 1,582.11 = 569.35 : x
  2. Step 2: Convert to fraction form
    1,055.96/1,582.11 = 569.35/x
  3. Step 3: Cross multiply
    1,055.96x = 1,582.11 × 569.35
  4. Step 4: Simplify right side
    1,055.96x = 900,774.33
  5. Step 5: Solve for x
    x = 900,774.33/1,055.96
  6. Step 6: Final answer
    x = 853.04

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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.