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Finding the Fourth Proportional to 1,573.13, 2,170.91 and 952.13

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Solution

The fourth proportional to 1,573.13, 2,170.91 and 952.13 is: 1,313.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,573.13 : 2,170.91 = 952.13 : x
  2. Step 2: Convert to fraction form
    1,573.13/2,170.91 = 952.13/x
  3. Step 3: Cross multiply
    1,573.13x = 2,170.91 × 952.13
  4. Step 4: Simplify right side
    1,573.13x = 2,066,980.06
  5. Step 5: Solve for x
    x = 2,066,980.06/1,573.13
  6. Step 6: Final answer
    x = 1,313.93

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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.