Home / 2,276.32-3,140.80-1,531.68

Finding the Fourth Proportional to 2,276.32, 3,140.80 and 1,531.68

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Solution

The fourth proportional to 2,276.32, 3,140.80 and 1,531.68 is: 2,113.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,276.32 : 3,140.80 = 1,531.68 : x
  2. Step 2: Convert to fraction form
    2,276.32/3,140.80 = 1,531.68/x
  3. Step 3: Cross multiply
    2,276.32x = 3,140.80 × 1,531.68
  4. Step 4: Simplify right side
    2,276.32x = 4,810,700.54
  5. Step 5: Solve for x
    x = 4,810,700.54/2,276.32
  6. Step 6: Final answer
    x = 2,113.37

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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.