Home / 5,209.71-7,817.61-1,925.10

Finding the Fourth Proportional to 5,209.71, 7,817.61 and 1,925.10

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Solution

The fourth proportional to 5,209.71, 7,817.61 and 1,925.10 is: 2,888.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,209.71 : 7,817.61 = 1,925.10 : x
  2. Step 2: Convert to fraction form
    5,209.71/7,817.61 = 1,925.10/x
  3. Step 3: Cross multiply
    5,209.71x = 7,817.61 × 1,925.10
  4. Step 4: Simplify right side
    5,209.71x = 15,049,681.01
  5. Step 5: Solve for x
    x = 15,049,681.01/5,209.71
  6. Step 6: Final answer
    x = 2,888.78

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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.