Home / 3,155.32-4,354.35-1,810.97

Finding the Fourth Proportional to 3,155.32, 4,354.35 and 1,810.97

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Solution

The fourth proportional to 3,155.32, 4,354.35 and 1,810.97 is: 2,499.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.32 : 4,354.35 = 1,810.97 : x
  2. Step 2: Convert to fraction form
    3,155.32/4,354.35 = 1,810.97/x
  3. Step 3: Cross multiply
    3,155.32x = 4,354.35 × 1,810.97
  4. Step 4: Simplify right side
    3,155.32x = 7,885,614.57
  5. Step 5: Solve for x
    x = 7,885,614.57/3,155.32
  6. Step 6: Final answer
    x = 2,499.15

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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.