Home / 1,513.62-2,269.02-1,378.36

Finding the Fourth Proportional to 1,513.62, 2,269.02 and 1,378.36

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Solution

The fourth proportional to 1,513.62, 2,269.02 and 1,378.36 is: 2,066.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,513.62 : 2,269.02 = 1,378.36 : x
  2. Step 2: Convert to fraction form
    1,513.62/2,269.02 = 1,378.36/x
  3. Step 3: Cross multiply
    1,513.62x = 2,269.02 × 1,378.36
  4. Step 4: Simplify right side
    1,513.62x = 3,127,526.41
  5. Step 5: Solve for x
    x = 3,127,526.41/1,513.62
  6. Step 6: Final answer
    x = 2,066.26

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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.