Home / 7,922.76-10,931.64-4,735.20

Finding the Fourth Proportional to 7,922.76, 10,931.64 and 4,735.20

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Solution

The fourth proportional to 7,922.76, 10,931.64 and 4,735.20 is: 6,533.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,922.76 : 10,931.64 = 4,735.20 : x
  2. Step 2: Convert to fraction form
    7,922.76/10,931.64 = 4,735.20/x
  3. Step 3: Cross multiply
    7,922.76x = 10,931.64 × 4,735.20
  4. Step 4: Simplify right side
    7,922.76x = 51,763,501.73
  5. Step 5: Solve for x
    x = 51,763,501.73/7,922.76
  6. Step 6: Final answer
    x = 6,533.52

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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.