Home / 7,947.76-10,968.40-4,591.20

Finding the Fourth Proportional to 7,947.76, 10,968.40 and 4,591.20

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Solution

The fourth proportional to 7,947.76, 10,968.40 and 4,591.20 is: 6,336.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,947.76 : 10,968.40 = 4,591.20 : x
  2. Step 2: Convert to fraction form
    7,947.76/10,968.40 = 4,591.20/x
  3. Step 3: Cross multiply
    7,947.76x = 10,968.40 × 4,591.20
  4. Step 4: Simplify right side
    7,947.76x = 50,358,118.08
  5. Step 5: Solve for x
    x = 50,358,118.08/7,947.76
  6. Step 6: Final answer
    x = 6,336.14

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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.