Home / 7,292.70-10,931.85-2,904.30

Finding the Fourth Proportional to 7,292.70, 10,931.85 and 2,904.30

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Solution

The fourth proportional to 7,292.70, 10,931.85 and 2,904.30 is: 4,353.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,292.70 : 10,931.85 = 2,904.30 : x
  2. Step 2: Convert to fraction form
    7,292.70/10,931.85 = 2,904.30/x
  3. Step 3: Cross multiply
    7,292.70x = 10,931.85 × 2,904.30
  4. Step 4: Simplify right side
    7,292.70x = 31,749,371.96
  5. Step 5: Solve for x
    x = 31,749,371.96/7,292.70
  6. Step 6: Final answer
    x = 4,353.58

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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.