Home / 1,573.24-2,170.87-943.65

Finding the Fourth Proportional to 1,573.24, 2,170.87 and 943.65

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Solution

The fourth proportional to 1,573.24, 2,170.87 and 943.65 is: 1,302.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,573.24 : 2,170.87 = 943.65 : x
  2. Step 2: Convert to fraction form
    1,573.24/2,170.87 = 943.65/x
  3. Step 3: Cross multiply
    1,573.24x = 2,170.87 × 943.65
  4. Step 4: Simplify right side
    1,573.24x = 2,048,541.48
  5. Step 5: Solve for x
    x = 2,048,541.48/1,573.24
  6. Step 6: Final answer
    x = 1,302.12

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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.