Home / 3,172.52-4,377.92-1,756.16

Finding the Fourth Proportional to 3,172.52, 4,377.92 and 1,756.16

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Solution

The fourth proportional to 3,172.52, 4,377.92 and 1,756.16 is: 2,423.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172.52 : 4,377.92 = 1,756.16 : x
  2. Step 2: Convert to fraction form
    3,172.52/4,377.92 = 1,756.16/x
  3. Step 3: Cross multiply
    3,172.52x = 4,377.92 × 1,756.16
  4. Step 4: Simplify right side
    3,172.52x = 7,688,338.36
  5. Step 5: Solve for x
    x = 7,688,338.36/3,172.52
  6. Step 6: Final answer
    x = 2,423.42

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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.