Home / 3,415.34-5,123.01-1,953.47

Finding the Fourth Proportional to 3,415.34, 5,123.01 and 1,953.47

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Solution

The fourth proportional to 3,415.34, 5,123.01 and 1,953.47 is: 2,930.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,415.34 : 5,123.01 = 1,953.47 : x
  2. Step 2: Convert to fraction form
    3,415.34/5,123.01 = 1,953.47/x
  3. Step 3: Cross multiply
    3,415.34x = 5,123.01 × 1,953.47
  4. Step 4: Simplify right side
    3,415.34x = 10,007,646.34
  5. Step 5: Solve for x
    x = 10,007,646.34/3,415.34
  6. Step 6: Final answer
    x = 2,930.21

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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.