Home / 2,929.33-4,378.28-2,556.19

Finding the Fourth Proportional to 2,929.33, 4,378.28 and 2,556.19

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Solution

The fourth proportional to 2,929.33, 4,378.28 and 2,556.19 is: 3,820.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,929.33 : 4,378.28 = 2,556.19 : x
  2. Step 2: Convert to fraction form
    2,929.33/4,378.28 = 2,556.19/x
  3. Step 3: Cross multiply
    2,929.33x = 4,378.28 × 2,556.19
  4. Step 4: Simplify right side
    2,929.33x = 11,191,715.55
  5. Step 5: Solve for x
    x = 11,191,715.55/2,929.33
  6. Step 6: Final answer
    x = 3,820.57

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1.5x scale

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.