Home / 1,598.40-2,188.80-1,569.60

Finding the Fourth Proportional to 1,598.40, 2,188.80 and 1,569.60

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Solution

The fourth proportional to 1,598.40, 2,188.80 and 1,569.60 is: 2,149.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,598.40 : 2,188.80 = 1,569.60 : x
  2. Step 2: Convert to fraction form
    1,598.40/2,188.80 = 1,569.60/x
  3. Step 3: Cross multiply
    1,598.40x = 2,188.80 × 1,569.60
  4. Step 4: Simplify right side
    1,598.40x = 3,435,540.48
  5. Step 5: Solve for x
    x = 3,435,540.48/1,598.40
  6. Step 6: Final answer
    x = 2,149.36

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1.5x scale

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.