Home / 7,928.64-10,938.87-4,570.29

Finding the Fourth Proportional to 7,928.64, 10,938.87 and 4,570.29

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Solution

The fourth proportional to 7,928.64, 10,938.87 and 4,570.29 is: 6,305.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,928.64 : 10,938.87 = 4,570.29 : x
  2. Step 2: Convert to fraction form
    7,928.64/10,938.87 = 4,570.29/x
  3. Step 3: Cross multiply
    7,928.64x = 10,938.87 × 4,570.29
  4. Step 4: Simplify right side
    7,928.64x = 49,993,808.17
  5. Step 5: Solve for x
    x = 49,993,808.17/7,928.64
  6. Step 6: Final answer
    x = 6,305.47

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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.