Home / 2,551,728.38-3,521,343.87-1,390,188.51

Finding the Fourth Proportional to 2,551,728.38, 3,521,343.87 and 1,390,188.51

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Solution

The fourth proportional to 2,551,728.38, 3,521,343.87 and 1,390,188.51 is: 1,918,437.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,551,728.38 : 3,521,343.87 = 1,390,188.51 : x
  2. Step 2: Convert to fraction form
    2,551,728.38/3,521,343.87 = 1,390,188.51/x
  3. Step 3: Cross multiply
    2,551,728.38x = 3,521,343.87 × 1,390,188.51
  4. Step 4: Simplify right side
    2,551,728.38x = 4,895,331,787,832.93
  5. Step 5: Solve for x
    x = 4,895,331,787,832.93/2,551,728.38
  6. Step 6: Final answer
    x = 1,918,437.65

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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.