Home / 7,285.76-10,928.64-3,123.08

Finding the Fourth Proportional to 7,285.76, 10,928.64 and 3,123.08

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Solution

The fourth proportional to 7,285.76, 10,928.64 and 3,123.08 is: 4,684.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,285.76 : 10,928.64 = 3,123.08 : x
  2. Step 2: Convert to fraction form
    7,285.76/10,928.64 = 3,123.08/x
  3. Step 3: Cross multiply
    7,285.76x = 10,928.64 × 3,123.08
  4. Step 4: Simplify right side
    7,285.76x = 34,130,962.37
  5. Step 5: Solve for x
    x = 34,130,962.37/7,285.76
  6. Step 6: Final answer
    x = 4,684.62

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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.