Home / 1,557.84-2,151.81-1,371.96

Finding the Fourth Proportional to 1,557.84, 2,151.81 and 1,371.96

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Solution

The fourth proportional to 1,557.84, 2,151.81 and 1,371.96 is: 1,895.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557.84 : 2,151.81 = 1,371.96 : x
  2. Step 2: Convert to fraction form
    1,557.84/2,151.81 = 1,371.96/x
  3. Step 3: Cross multiply
    1,557.84x = 2,151.81 × 1,371.96
  4. Step 4: Simplify right side
    1,557.84x = 2,952,197.25
  5. Step 5: Solve for x
    x = 2,952,197.25/1,557.84
  6. Step 6: Final answer
    x = 1,895.06

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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.