Home / 2,487.53-3,431.64-1,491.08

Finding the Fourth Proportional to 2,487.53, 3,431.64 and 1,491.08

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Solution

The fourth proportional to 2,487.53, 3,431.64 and 1,491.08 is: 2,057.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,487.53 : 3,431.64 = 1,491.08 : x
  2. Step 2: Convert to fraction form
    2,487.53/3,431.64 = 1,491.08/x
  3. Step 3: Cross multiply
    2,487.53x = 3,431.64 × 1,491.08
  4. Step 4: Simplify right side
    2,487.53x = 5,116,851.07
  5. Step 5: Solve for x
    x = 5,116,851.07/2,487.53
  6. Step 6: Final answer
    x = 2,057.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.