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Finding the Fourth Proportional to 1,577.83, 2,365.03 and 652.90

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Solution

The fourth proportional to 1,577.83, 2,365.03 and 652.90 is: 978.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,577.83 : 2,365.03 = 652.90 : x
  2. Step 2: Convert to fraction form
    1,577.83/2,365.03 = 652.90/x
  3. Step 3: Cross multiply
    1,577.83x = 2,365.03 × 652.90
  4. Step 4: Simplify right side
    1,577.83x = 1,544,128.09
  5. Step 5: Solve for x
    x = 1,544,128.09/1,577.83
  6. Step 6: Final answer
    x = 978.64

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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.