Home / 5,297.10-7,308.90-2,938.74

Finding the Fourth Proportional to 5,297.10, 7,308.90 and 2,938.74

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Solution

The fourth proportional to 5,297.10, 7,308.90 and 2,938.74 is: 4,054.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,297.10 : 7,308.90 = 2,938.74 : x
  2. Step 2: Convert to fraction form
    5,297.10/7,308.90 = 2,938.74/x
  3. Step 3: Cross multiply
    5,297.10x = 7,308.90 × 2,938.74
  4. Step 4: Simplify right side
    5,297.10x = 21,478,956.79
  5. Step 5: Solve for x
    x = 21,478,956.79/5,297.10
  6. Step 6: Final answer
    x = 4,054.85

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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.