Home / 1,588.80-2,185.92-1,545.60

Finding the Fourth Proportional to 1,588.80, 2,185.92 and 1,545.60

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Solution

The fourth proportional to 1,588.80, 2,185.92 and 1,545.60 is: 2,126.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,588.80 : 2,185.92 = 1,545.60 : x
  2. Step 2: Convert to fraction form
    1,588.80/2,185.92 = 1,545.60/x
  3. Step 3: Cross multiply
    1,588.80x = 2,185.92 × 1,545.60
  4. Step 4: Simplify right side
    1,588.80x = 3,378,557.95
  5. Step 5: Solve for x
    x = 3,378,557.95/1,588.80
  6. Step 6: Final answer
    x = 2,126.48

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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.