Home / 1,576.25-2,175.01-913.06

Finding the Fourth Proportional to 1,576.25, 2,175.01 and 913.06

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Solution

The fourth proportional to 1,576.25, 2,175.01 and 913.06 is: 1,259.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,576.25 : 2,175.01 = 913.06 : x
  2. Step 2: Convert to fraction form
    1,576.25/2,175.01 = 913.06/x
  3. Step 3: Cross multiply
    1,576.25x = 2,175.01 × 913.06
  4. Step 4: Simplify right side
    1,576.25x = 1,985,914.63
  5. Step 5: Solve for x
    x = 1,985,914.63/1,576.25
  6. Step 6: Final answer
    x = 1,259.90

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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.