Home / 1,277.95-1,916.50-547.33

Finding the Fourth Proportional to 1,277.95, 1,916.50 and 547.33

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Solution

The fourth proportional to 1,277.95, 1,916.50 and 547.33 is: 820.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277.95 : 1,916.50 = 547.33 : x
  2. Step 2: Convert to fraction form
    1,277.95/1,916.50 = 547.33/x
  3. Step 3: Cross multiply
    1,277.95x = 1,916.50 × 547.33
  4. Step 4: Simplify right side
    1,277.95x = 1,048,957.95
  5. Step 5: Solve for x
    x = 1,048,957.95/1,277.95
  6. Step 6: Final answer
    x = 820.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.