Home / 2,928.20-4,354.65-2,835.94

Finding the Fourth Proportional to 2,928.20, 4,354.65 and 2,835.94

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Solution

The fourth proportional to 2,928.20, 4,354.65 and 2,835.94 is: 4,217.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928.20 : 4,354.65 = 2,835.94 : x
  2. Step 2: Convert to fraction form
    2,928.20/4,354.65 = 2,835.94/x
  3. Step 3: Cross multiply
    2,928.20x = 4,354.65 × 2,835.94
  4. Step 4: Simplify right side
    2,928.20x = 12,349,526.12
  5. Step 5: Solve for x
    x = 12,349,526.12/2,928.20
  6. Step 6: Final answer
    x = 4,217.45

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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.