Home / 5,328.72-7,353.33-2,970.78

Finding the Fourth Proportional to 5,328.72, 7,353.33 and 2,970.78

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Solution

The fourth proportional to 5,328.72, 7,353.33 and 2,970.78 is: 4,099.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,328.72 : 7,353.33 = 2,970.78 : x
  2. Step 2: Convert to fraction form
    5,328.72/7,353.33 = 2,970.78/x
  3. Step 3: Cross multiply
    5,328.72x = 7,353.33 × 2,970.78
  4. Step 4: Simplify right side
    5,328.72x = 21,845,125.70
  5. Step 5: Solve for x
    x = 21,845,125.70/5,328.72
  6. Step 6: Final answer
    x = 4,099.51

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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.