Home / 1,556.18-2,147.95-893.38

Finding the Fourth Proportional to 1,556.18, 2,147.95 and 893.38

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Solution

The fourth proportional to 1,556.18, 2,147.95 and 893.38 is: 1,233.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556.18 : 2,147.95 = 893.38 : x
  2. Step 2: Convert to fraction form
    1,556.18/2,147.95 = 893.38/x
  3. Step 3: Cross multiply
    1,556.18x = 2,147.95 × 893.38
  4. Step 4: Simplify right side
    1,556.18x = 1,918,935.57
  5. Step 5: Solve for x
    x = 1,918,935.57/1,556.18
  6. Step 6: Final answer
    x = 1,233.11

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1.5x scale

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.