Home / 1,283.34-1,925.70-1,260.45

Finding the Fourth Proportional to 1,283.34, 1,925.70 and 1,260.45

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Solution

The fourth proportional to 1,283.34, 1,925.70 and 1,260.45 is: 1,891.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,283.34 : 1,925.70 = 1,260.45 : x
  2. Step 2: Convert to fraction form
    1,283.34/1,925.70 = 1,260.45/x
  3. Step 3: Cross multiply
    1,283.34x = 1,925.70 × 1,260.45
  4. Step 4: Simplify right side
    1,283.34x = 2,427,248.57
  5. Step 5: Solve for x
    x = 2,427,248.57/1,283.34
  6. Step 6: Final answer
    x = 1,891.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.