Home / 1,573.09-2,170.47-943.66

Finding the Fourth Proportional to 1,573.09, 2,170.47 and 943.66

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Solution

The fourth proportional to 1,573.09, 2,170.47 and 943.66 is: 1,302.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,573.09 : 2,170.47 = 943.66 : x
  2. Step 2: Convert to fraction form
    1,573.09/2,170.47 = 943.66/x
  3. Step 3: Cross multiply
    1,573.09x = 2,170.47 × 943.66
  4. Step 4: Simplify right side
    1,573.09x = 2,048,191.97
  5. Step 5: Solve for x
    x = 2,048,191.97/1,573.09
  6. Step 6: Final answer
    x = 1,302.02

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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.