Home / 10,390.63-15,585.95-2,792.02

Finding the Fourth Proportional to 10,390.63, 15,585.95 and 2,792.02

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Solution

The fourth proportional to 10,390.63, 15,585.95 and 2,792.02 is: 4,188.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,390.63 : 15,585.95 = 2,792.02 : x
  2. Step 2: Convert to fraction form
    10,390.63/15,585.95 = 2,792.02/x
  3. Step 3: Cross multiply
    10,390.63x = 15,585.95 × 2,792.02
  4. Step 4: Simplify right side
    10,390.63x = 43,516,284.12
  5. Step 5: Solve for x
    x = 43,516,284.12/10,390.63
  6. Step 6: Final answer
    x = 4,188.03

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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.