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Finding the Fourth Proportional to 1,561.32, 2,341.68 and 587.10

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Solution

The fourth proportional to 1,561.32, 2,341.68 and 587.10 is: 880.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561.32 : 2,341.68 = 587.10 : x
  2. Step 2: Convert to fraction form
    1,561.32/2,341.68 = 587.10/x
  3. Step 3: Cross multiply
    1,561.32x = 2,341.68 × 587.10
  4. Step 4: Simplify right side
    1,561.32x = 1,374,800.33
  5. Step 5: Solve for x
    x = 1,374,800.33/1,561.32
  6. Step 6: Final answer
    x = 880.54

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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.