Home / 3,160.24-4,742.78-1,430.08

Finding the Fourth Proportional to 3,160.24, 4,742.78 and 1,430.08

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Solution

The fourth proportional to 3,160.24, 4,742.78 and 1,430.08 is: 2,146.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,160.24 : 4,742.78 = 1,430.08 : x
  2. Step 2: Convert to fraction form
    3,160.24/4,742.78 = 1,430.08/x
  3. Step 3: Cross multiply
    3,160.24x = 4,742.78 × 1,430.08
  4. Step 4: Simplify right side
    3,160.24x = 6,782,554.82
  5. Step 5: Solve for x
    x = 6,782,554.82/3,160.24
  6. Step 6: Final answer
    x = 2,146.22

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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.