Home / 1,642.18-2,266.50-943.54

Finding the Fourth Proportional to 1,642.18, 2,266.50 and 943.54

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Solution

The fourth proportional to 1,642.18, 2,266.50 and 943.54 is: 1,302.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,642.18 : 2,266.50 = 943.54 : x
  2. Step 2: Convert to fraction form
    1,642.18/2,266.50 = 943.54/x
  3. Step 3: Cross multiply
    1,642.18x = 2,266.50 × 943.54
  4. Step 4: Simplify right side
    1,642.18x = 2,138,533.41
  5. Step 5: Solve for x
    x = 2,138,533.41/1,642.18
  6. Step 6: Final answer
    x = 1,302.25

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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.