Home / 5,440.28-8,155.64-1,929.74

Finding the Fourth Proportional to 5,440.28, 8,155.64 and 1,929.74

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Solution

The fourth proportional to 5,440.28, 8,155.64 and 1,929.74 is: 2,892.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,440.28 : 8,155.64 = 1,929.74 : x
  2. Step 2: Convert to fraction form
    5,440.28/8,155.64 = 1,929.74/x
  3. Step 3: Cross multiply
    5,440.28x = 8,155.64 × 1,929.74
  4. Step 4: Simplify right side
    5,440.28x = 15,738,214.31
  5. Step 5: Solve for x
    x = 15,738,214.31/5,440.28
  6. Step 6: Final answer
    x = 2,892.91

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1.5x scale

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.