Home / 3,430.18-5,141.63-1,785.08

Finding the Fourth Proportional to 3,430.18, 5,141.63 and 1,785.08

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Solution

The fourth proportional to 3,430.18, 5,141.63 and 1,785.08 is: 2,675.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,430.18 : 5,141.63 = 1,785.08 : x
  2. Step 2: Convert to fraction form
    3,430.18/5,141.63 = 1,785.08/x
  3. Step 3: Cross multiply
    3,430.18x = 5,141.63 × 1,785.08
  4. Step 4: Simplify right side
    3,430.18x = 9,178,220.88
  5. Step 5: Solve for x
    x = 9,178,220.88/3,430.18
  6. Step 6: Final answer
    x = 2,675.73

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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.