Home / 5,153.60-7,111.68-3,057.92

Finding the Fourth Proportional to 5,153.60, 7,111.68 and 3,057.92

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Solution

The fourth proportional to 5,153.60, 7,111.68 and 3,057.92 is: 4,219.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,153.60 : 7,111.68 = 3,057.92 : x
  2. Step 2: Convert to fraction form
    5,153.60/7,111.68 = 3,057.92/x
  3. Step 3: Cross multiply
    5,153.60x = 7,111.68 × 3,057.92
  4. Step 4: Simplify right side
    5,153.60x = 21,746,948.51
  5. Step 5: Solve for x
    x = 21,746,948.51/5,153.60
  6. Step 6: Final answer
    x = 4,219.76

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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.