Home / 2,505.81-3,457.90-1,371.46

Finding the Fourth Proportional to 2,505.81, 3,457.90 and 1,371.46

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Solution

The fourth proportional to 2,505.81, 3,457.90 and 1,371.46 is: 1,892.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,505.81 : 3,457.90 = 1,371.46 : x
  2. Step 2: Convert to fraction form
    2,505.81/3,457.90 = 1,371.46/x
  3. Step 3: Cross multiply
    2,505.81x = 3,457.90 × 1,371.46
  4. Step 4: Simplify right side
    2,505.81x = 4,742,371.53
  5. Step 5: Solve for x
    x = 4,742,371.53/2,505.81
  6. Step 6: Final answer
    x = 1,892.55

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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.