Home / 10,280.90-15,422.31-2,885.32

Finding the Fourth Proportional to 10,280.90, 15,422.31 and 2,885.32

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Solution

The fourth proportional to 10,280.90, 15,422.31 and 2,885.32 is: 4,328.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,280.90 : 15,422.31 = 2,885.32 : x
  2. Step 2: Convert to fraction form
    10,280.90/15,422.31 = 2,885.32/x
  3. Step 3: Cross multiply
    10,280.90x = 15,422.31 × 2,885.32
  4. Step 4: Simplify right side
    10,280.90x = 44,498,338.04
  5. Step 5: Solve for x
    x = 44,498,338.04/10,280.90
  6. Step 6: Final answer
    x = 4,328.25

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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.