Home / 5,338.16-7,365.98-2,980.40

Finding the Fourth Proportional to 5,338.16, 7,365.98 and 2,980.40

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Solution

The fourth proportional to 5,338.16, 7,365.98 and 2,980.40 is: 4,112.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,338.16 : 7,365.98 = 2,980.40 : x
  2. Step 2: Convert to fraction form
    5,338.16/7,365.98 = 2,980.40/x
  3. Step 3: Cross multiply
    5,338.16x = 7,365.98 × 2,980.40
  4. Step 4: Simplify right side
    5,338.16x = 21,953,551.89
  5. Step 5: Solve for x
    x = 21,953,551.89/5,338.16
  6. Step 6: Final answer
    x = 4,112.57

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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.