Home / 1,865.40-2,569.80-1,304.82

Finding the Fourth Proportional to 1,865.40, 2,569.80 and 1,304.82

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Solution

The fourth proportional to 1,865.40, 2,569.80 and 1,304.82 is: 1,797.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,865.40 : 2,569.80 = 1,304.82 : x
  2. Step 2: Convert to fraction form
    1,865.40/2,569.80 = 1,304.82/x
  3. Step 3: Cross multiply
    1,865.40x = 2,569.80 × 1,304.82
  4. Step 4: Simplify right side
    1,865.40x = 3,353,126.44
  5. Step 5: Solve for x
    x = 3,353,126.44/1,865.40
  6. Step 6: Final answer
    x = 1,797.54

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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.