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Finding the Fourth Proportional to 4,928.71, 7,394.28 and 4,385.01

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Solution

The fourth proportional to 4,928.71, 7,394.28 and 4,385.01 is: 6,578.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,928.71 : 7,394.28 = 4,385.01 : x
  2. Step 2: Convert to fraction form
    4,928.71/7,394.28 = 4,385.01/x
  3. Step 3: Cross multiply
    4,928.71x = 7,394.28 × 4,385.01
  4. Step 4: Simplify right side
    4,928.71x = 32,423,991.74
  5. Step 5: Solve for x
    x = 32,423,991.74/4,928.71
  6. Step 6: Final answer
    x = 6,578.60

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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.