Home / 1,501.40-2,072.97-1,343.57

Finding the Fourth Proportional to 1,501.40, 2,072.97 and 1,343.57

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Solution

The fourth proportional to 1,501.40, 2,072.97 and 1,343.57 is: 1,855.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,501.40 : 2,072.97 = 1,343.57 : x
  2. Step 2: Convert to fraction form
    1,501.40/2,072.97 = 1,343.57/x
  3. Step 3: Cross multiply
    1,501.40x = 2,072.97 × 1,343.57
  4. Step 4: Simplify right side
    1,501.40x = 2,785,180.30
  5. Step 5: Solve for x
    x = 2,785,180.30/1,501.40
  6. Step 6: Final answer
    x = 1,855.06

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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.