Home / 1,332.49-1,821.72-1,281.46

Finding the Fourth Proportional to 1,332.49, 1,821.72 and 1,281.46

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Solution

The fourth proportional to 1,332.49, 1,821.72 and 1,281.46 is: 1,751.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332.49 : 1,821.72 = 1,281.46 : x
  2. Step 2: Convert to fraction form
    1,332.49/1,821.72 = 1,281.46/x
  3. Step 3: Cross multiply
    1,332.49x = 1,821.72 × 1,281.46
  4. Step 4: Simplify right side
    1,332.49x = 2,334,461.31
  5. Step 5: Solve for x
    x = 2,334,461.31/1,332.49
  6. Step 6: Final answer
    x = 1,751.95

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.