Home / 1,154.40-1,721.88-1,073.76

Finding the Fourth Proportional to 1,154.40, 1,721.88 and 1,073.76

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Solution

The fourth proportional to 1,154.40, 1,721.88 and 1,073.76 is: 1,601.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,154.40 : 1,721.88 = 1,073.76 : x
  2. Step 2: Convert to fraction form
    1,154.40/1,721.88 = 1,073.76/x
  3. Step 3: Cross multiply
    1,154.40x = 1,721.88 × 1,073.76
  4. Step 4: Simplify right side
    1,154.40x = 1,848,885.87
  5. Step 5: Solve for x
    x = 1,848,885.87/1,154.40
  6. Step 6: Final answer
    x = 1,601.60

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.