Home / 2,920.78-4,030.79-1,594.57

Finding the Fourth Proportional to 2,920.78, 4,030.79 and 1,594.57

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Solution

The fourth proportional to 2,920.78, 4,030.79 and 1,594.57 is: 2,200.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.78 : 4,030.79 = 1,594.57 : x
  2. Step 2: Convert to fraction form
    2,920.78/4,030.79 = 1,594.57/x
  3. Step 3: Cross multiply
    2,920.78x = 4,030.79 × 1,594.57
  4. Step 4: Simplify right side
    2,920.78x = 6,427,376.81
  5. Step 5: Solve for x
    x = 6,427,376.81/2,920.78
  6. Step 6: Final answer
    x = 2,200.57

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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.