Home / 5,343.60-7,374.78-2,985.96

Finding the Fourth Proportional to 5,343.60, 7,374.78 and 2,985.96

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Solution

The fourth proportional to 5,343.60, 7,374.78 and 2,985.96 is: 4,120.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,343.60 : 7,374.78 = 2,985.96 : x
  2. Step 2: Convert to fraction form
    5,343.60/7,374.78 = 2,985.96/x
  3. Step 3: Cross multiply
    5,343.60x = 7,374.78 × 2,985.96
  4. Step 4: Simplify right side
    5,343.60x = 22,020,798.09
  5. Step 5: Solve for x
    x = 22,020,798.09/5,343.60
  6. Step 6: Final answer
    x = 4,120.97

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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.