Home / 2,130.36-3,200.40-1,515.58

Finding the Fourth Proportional to 2,130.36, 3,200.40 and 1,515.58

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Solution

The fourth proportional to 2,130.36, 3,200.40 and 1,515.58 is: 2,276.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130.36 : 3,200.40 = 1,515.58 : x
  2. Step 2: Convert to fraction form
    2,130.36/3,200.40 = 1,515.58/x
  3. Step 3: Cross multiply
    2,130.36x = 3,200.40 × 1,515.58
  4. Step 4: Simplify right side
    2,130.36x = 4,850,462.23
  5. Step 5: Solve for x
    x = 4,850,462.23/2,130.36
  6. Step 6: Final answer
    x = 2,276.83

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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.