Home / 5,286.31-7,295.17-2,928.59

Finding the Fourth Proportional to 5,286.31, 7,295.17 and 2,928.59

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Solution

The fourth proportional to 5,286.31, 7,295.17 and 2,928.59 is: 4,041.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286.31 : 7,295.17 = 2,928.59 : x
  2. Step 2: Convert to fraction form
    5,286.31/7,295.17 = 2,928.59/x
  3. Step 3: Cross multiply
    5,286.31x = 7,295.17 × 2,928.59
  4. Step 4: Simplify right side
    5,286.31x = 21,364,547.27
  5. Step 5: Solve for x
    x = 21,364,547.27/5,286.31
  6. Step 6: Final answer
    x = 4,041.49

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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.