Home / 1,576.14-2,175.44-913.35

Finding the Fourth Proportional to 1,576.14, 2,175.44 and 913.35

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Solution

The fourth proportional to 1,576.14, 2,175.44 and 913.35 is: 1,260.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,576.14 : 2,175.44 = 913.35 : x
  2. Step 2: Convert to fraction form
    1,576.14/2,175.44 = 913.35/x
  3. Step 3: Cross multiply
    1,576.14x = 2,175.44 × 913.35
  4. Step 4: Simplify right side
    1,576.14x = 1,986,938.12
  5. Step 5: Solve for x
    x = 1,986,938.12/1,576.14
  6. Step 6: Final answer
    x = 1,260.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.