Home / 1,637.40-2,257.88-1,264.44

Finding the Fourth Proportional to 1,637.40, 2,257.88 and 1,264.44

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Solution

The fourth proportional to 1,637.40, 2,257.88 and 1,264.44 is: 1,743.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,637.40 : 2,257.88 = 1,264.44 : x
  2. Step 2: Convert to fraction form
    1,637.40/2,257.88 = 1,264.44/x
  3. Step 3: Cross multiply
    1,637.40x = 2,257.88 × 1,264.44
  4. Step 4: Simplify right side
    1,637.40x = 2,854,953.79
  5. Step 5: Solve for x
    x = 2,854,953.79/1,637.40
  6. Step 6: Final answer
    x = 1,743.59

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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.