Home / 1,576.96-2,175.93-913.70

Finding the Fourth Proportional to 1,576.96, 2,175.93 and 913.70

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Solution

The fourth proportional to 1,576.96, 2,175.93 and 913.70 is: 1,260.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,576.96 : 2,175.93 = 913.70 : x
  2. Step 2: Convert to fraction form
    1,576.96/2,175.93 = 913.70/x
  3. Step 3: Cross multiply
    1,576.96x = 2,175.93 × 913.70
  4. Step 4: Simplify right side
    1,576.96x = 1,988,147.24
  5. Step 5: Solve for x
    x = 1,988,147.24/1,576.96
  6. Step 6: Final answer
    x = 1,260.75

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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.