Home / 7,315.20-10,946.88-4,975.44

Finding the Fourth Proportional to 7,315.20, 10,946.88 and 4,975.44

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Solution

The fourth proportional to 7,315.20, 10,946.88 and 4,975.44 is: 7,445.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,315.20 : 10,946.88 = 4,975.44 : x
  2. Step 2: Convert to fraction form
    7,315.20/10,946.88 = 4,975.44/x
  3. Step 3: Cross multiply
    7,315.20x = 10,946.88 × 4,975.44
  4. Step 4: Simplify right side
    7,315.20x = 54,465,544.63
  5. Step 5: Solve for x
    x = 54,465,544.63/7,315.20
  6. Step 6: Final answer
    x = 7,445.53

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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.