Home / 2,167.41-2,989.36-1,572.13

Finding the Fourth Proportional to 2,167.41, 2,989.36 and 1,572.13

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Solution

The fourth proportional to 2,167.41, 2,989.36 and 1,572.13 is: 2,168.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,167.41 : 2,989.36 = 1,572.13 : x
  2. Step 2: Convert to fraction form
    2,167.41/2,989.36 = 1,572.13/x
  3. Step 3: Cross multiply
    2,167.41x = 2,989.36 × 1,572.13
  4. Step 4: Simplify right side
    2,167.41x = 4,699,667.80
  5. Step 5: Solve for x
    x = 4,699,667.80/2,167.41
  6. Step 6: Final answer
    x = 2,168.34

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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.