Home / 5,358.28-7,394.34-3,000.40

Finding the Fourth Proportional to 5,358.28, 7,394.34 and 3,000.40

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Solution

The fourth proportional to 5,358.28, 7,394.34 and 3,000.40 is: 4,140.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,358.28 : 7,394.34 = 3,000.40 : x
  2. Step 2: Convert to fraction form
    5,358.28/7,394.34 = 3,000.40/x
  3. Step 3: Cross multiply
    5,358.28x = 7,394.34 × 3,000.40
  4. Step 4: Simplify right side
    5,358.28x = 22,185,977.74
  5. Step 5: Solve for x
    x = 22,185,977.74/5,358.28
  6. Step 6: Final answer
    x = 4,140.50

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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.