Home / 1,572.93-2,170.17-943.11

Finding the Fourth Proportional to 1,572.93, 2,170.17 and 943.11

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Solution

The fourth proportional to 1,572.93, 2,170.17 and 943.11 is: 1,301.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,572.93 : 2,170.17 = 943.11 : x
  2. Step 2: Convert to fraction form
    1,572.93/2,170.17 = 943.11/x
  3. Step 3: Cross multiply
    1,572.93x = 2,170.17 × 943.11
  4. Step 4: Simplify right side
    1,572.93x = 2,046,709.03
  5. Step 5: Solve for x
    x = 2,046,709.03/1,572.93
  6. Step 6: Final answer
    x = 1,301.21

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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.