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Finding the Fourth Proportional to 1,556.55, 2,335.04 and 569.23

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Solution

The fourth proportional to 1,556.55, 2,335.04 and 569.23 is: 853.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556.55 : 2,335.04 = 569.23 : x
  2. Step 2: Convert to fraction form
    1,556.55/2,335.04 = 569.23/x
  3. Step 3: Cross multiply
    1,556.55x = 2,335.04 × 569.23
  4. Step 4: Simplify right side
    1,556.55x = 1,329,181.40
  5. Step 5: Solve for x
    x = 1,329,181.40/1,556.55
  6. Step 6: Final answer
    x = 853.93

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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.