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Finding the Fourth Proportional to 1,565, 2,347.44 and 395.02

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Solution

The fourth proportional to 1,565, 2,347.44 and 395.02 is: 592.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565 : 2,347.44 = 395.02 : x
  2. Step 2: Convert to fraction form
    1,565/2,347.44 = 395.02/x
  3. Step 3: Cross multiply
    1,565x = 2,347.44 × 395.02
  4. Step 4: Simplify right side
    1,565x = 927,285.75
  5. Step 5: Solve for x
    x = 927,285.75/1,565
  6. Step 6: Final answer
    x = 592.51

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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.