Home / 5,296.30-7,308.56-2,938.40

Finding the Fourth Proportional to 5,296.30, 7,308.56 and 2,938.40

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Solution

The fourth proportional to 5,296.30, 7,308.56 and 2,938.40 is: 4,054.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,296.30 : 7,308.56 = 2,938.40 : x
  2. Step 2: Convert to fraction form
    5,296.30/7,308.56 = 2,938.40/x
  3. Step 3: Cross multiply
    5,296.30x = 7,308.56 × 2,938.40
  4. Step 4: Simplify right side
    5,296.30x = 21,475,472.70
  5. Step 5: Solve for x
    x = 21,475,472.70/5,296.30
  6. Step 6: Final answer
    x = 4,054.81

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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.