Home / 4,288.74-6,431.95-1,515.04

Finding the Fourth Proportional to 4,288.74, 6,431.95 and 1,515.04

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Solution

The fourth proportional to 4,288.74, 6,431.95 and 1,515.04 is: 2,272.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,288.74 : 6,431.95 = 1,515.04 : x
  2. Step 2: Convert to fraction form
    4,288.74/6,431.95 = 1,515.04/x
  3. Step 3: Cross multiply
    4,288.74x = 6,431.95 × 1,515.04
  4. Step 4: Simplify right side
    4,288.74x = 9,744,681.74
  5. Step 5: Solve for x
    x = 9,744,681.74/4,288.74
  6. Step 6: Final answer
    x = 2,272.16

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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.