Home / 5,389.31-8,084.78-1,925.75

Finding the Fourth Proportional to 5,389.31, 8,084.78 and 1,925.75

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Solution

The fourth proportional to 5,389.31, 8,084.78 and 1,925.75 is: 2,888.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.31 : 8,084.78 = 1,925.75 : x
  2. Step 2: Convert to fraction form
    5,389.31/8,084.78 = 1,925.75/x
  3. Step 3: Cross multiply
    5,389.31x = 8,084.78 × 1,925.75
  4. Step 4: Simplify right side
    5,389.31x = 15,569,265.09
  5. Step 5: Solve for x
    x = 15,569,265.09/5,389.31
  6. Step 6: Final answer
    x = 2,888.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.