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Finding the Fourth Proportional to 1,561.76, 2,342.65 and 466.05

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Solution

The fourth proportional to 1,561.76, 2,342.65 and 466.05 is: 699.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561.76 : 2,342.65 = 466.05 : x
  2. Step 2: Convert to fraction form
    1,561.76/2,342.65 = 466.05/x
  3. Step 3: Cross multiply
    1,561.76x = 2,342.65 × 466.05
  4. Step 4: Simplify right side
    1,561.76x = 1,091,779.45
  5. Step 5: Solve for x
    x = 1,091,779.45/1,561.76
  6. Step 6: Final answer
    x = 699.07

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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.