Home / 1,941.72-2,681.70-1,572.72

Finding the Fourth Proportional to 1,941.72, 2,681.70 and 1,572.72

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Solution

The fourth proportional to 1,941.72, 2,681.70 and 1,572.72 is: 2,172.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941.72 : 2,681.70 = 1,572.72 : x
  2. Step 2: Convert to fraction form
    1,941.72/2,681.70 = 1,572.72/x
  3. Step 3: Cross multiply
    1,941.72x = 2,681.70 × 1,572.72
  4. Step 4: Simplify right side
    1,941.72x = 4,217,563.22
  5. Step 5: Solve for x
    x = 4,217,563.22/1,941.72
  6. Step 6: Final answer
    x = 2,172.08

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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.