Home / 7,123.45-10,681.39-3,565.01

Finding the Fourth Proportional to 7,123.45, 10,681.39 and 3,565.01

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Solution

The fourth proportional to 7,123.45, 10,681.39 and 3,565.01 is: 5,345.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,123.45 : 10,681.39 = 3,565.01 : x
  2. Step 2: Convert to fraction form
    7,123.45/10,681.39 = 3,565.01/x
  3. Step 3: Cross multiply
    7,123.45x = 10,681.39 × 3,565.01
  4. Step 4: Simplify right side
    7,123.45x = 38,079,190.93
  5. Step 5: Solve for x
    x = 38,079,190.93/7,123.45
  6. Step 6: Final answer
    x = 5,345.61

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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.