Home / 2,158.40-3,237.60-1,513.68

Finding the Fourth Proportional to 2,158.40, 3,237.60 and 1,513.68

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Solution

The fourth proportional to 2,158.40, 3,237.60 and 1,513.68 is: 2,270.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158.40 : 3,237.60 = 1,513.68 : x
  2. Step 2: Convert to fraction form
    2,158.40/3,237.60 = 1,513.68/x
  3. Step 3: Cross multiply
    2,158.40x = 3,237.60 × 1,513.68
  4. Step 4: Simplify right side
    2,158.40x = 4,900,690.37
  5. Step 5: Solve for x
    x = 4,900,690.37/2,158.40
  6. Step 6: Final answer
    x = 2,270.52

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Similar ratio
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1.5x scale

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.