Home / 3,015.96-4,159.13-1,820.72

Finding the Fourth Proportional to 3,015.96, 4,159.13 and 1,820.72

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Solution

The fourth proportional to 3,015.96, 4,159.13 and 1,820.72 is: 2,510.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,015.96 : 4,159.13 = 1,820.72 : x
  2. Step 2: Convert to fraction form
    3,015.96/4,159.13 = 1,820.72/x
  3. Step 3: Cross multiply
    3,015.96x = 4,159.13 × 1,820.72
  4. Step 4: Simplify right side
    3,015.96x = 7,572,581.27
  5. Step 5: Solve for x
    x = 7,572,581.27/3,015.96
  6. Step 6: Final answer
    x = 2,510.84

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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.