Home / 1,948.28-2,688.99-1,358.46

Finding the Fourth Proportional to 1,948.28, 2,688.99 and 1,358.46

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Solution

The fourth proportional to 1,948.28, 2,688.99 and 1,358.46 is: 1,874.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948.28 : 2,688.99 = 1,358.46 : x
  2. Step 2: Convert to fraction form
    1,948.28/2,688.99 = 1,358.46/x
  3. Step 3: Cross multiply
    1,948.28x = 2,688.99 × 1,358.46
  4. Step 4: Simplify right side
    1,948.28x = 3,652,885.36
  5. Step 5: Solve for x
    x = 3,652,885.36/1,948.28
  6. Step 6: Final answer
    x = 1,874.93

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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.