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Finding the Fourth Proportional to 2,431.76, 3,649.10 and 1,459.76

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Solution

The fourth proportional to 2,431.76, 3,649.10 and 1,459.76 is: 2,190.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,431.76 : 3,649.10 = 1,459.76 : x
  2. Step 2: Convert to fraction form
    2,431.76/3,649.10 = 1,459.76/x
  3. Step 3: Cross multiply
    2,431.76x = 3,649.10 × 1,459.76
  4. Step 4: Simplify right side
    2,431.76x = 5,326,810.22
  5. Step 5: Solve for x
    x = 5,326,810.22/2,431.76
  6. Step 6: Final answer
    x = 2,190.52

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1.5x scale

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.