Home / 10,290.49-15,435.81-2,895.70

Finding the Fourth Proportional to 10,290.49, 15,435.81 and 2,895.70

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Solution

The fourth proportional to 10,290.49, 15,435.81 and 2,895.70 is: 4,343.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,290.49 : 15,435.81 = 2,895.70 : x
  2. Step 2: Convert to fraction form
    10,290.49/15,435.81 = 2,895.70/x
  3. Step 3: Cross multiply
    10,290.49x = 15,435.81 × 2,895.70
  4. Step 4: Simplify right side
    10,290.49x = 44,697,383.36
  5. Step 5: Solve for x
    x = 44,697,383.36/10,290.49
  6. Step 6: Final answer
    x = 4,343.56

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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.