Home / 7,280.24-10,920.35-2,897.73

Finding the Fourth Proportional to 7,280.24, 10,920.35 and 2,897.73

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Solution

The fourth proportional to 7,280.24, 10,920.35 and 2,897.73 is: 4,346.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,280.24 : 10,920.35 = 2,897.73 : x
  2. Step 2: Convert to fraction form
    7,280.24/10,920.35 = 2,897.73/x
  3. Step 3: Cross multiply
    7,280.24x = 10,920.35 × 2,897.73
  4. Step 4: Simplify right side
    7,280.24x = 31,644,225.81
  5. Step 5: Solve for x
    x = 31,644,225.81/7,280.24
  6. Step 6: Final answer
    x = 4,346.59

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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.