Home / 1,556.50-2,146.85-1,084.55

Finding the Fourth Proportional to 1,556.50, 2,146.85 and 1,084.55

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Solution

The fourth proportional to 1,556.50, 2,146.85 and 1,084.55 is: 1,495.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556.50 : 2,146.85 = 1,084.55 : x
  2. Step 2: Convert to fraction form
    1,556.50/2,146.85 = 1,084.55/x
  3. Step 3: Cross multiply
    1,556.50x = 2,146.85 × 1,084.55
  4. Step 4: Simplify right side
    1,556.50x = 2,328,366.11
  5. Step 5: Solve for x
    x = 2,328,366.11/1,556.50
  6. Step 6: Final answer
    x = 1,495.90

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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.