Home / 2,981.24-4,465.38-1,439

Finding the Fourth Proportional to 2,981.24, 4,465.38 and 1,439

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Solution

The fourth proportional to 2,981.24, 4,465.38 and 1,439 is: 2,155.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,981.24 : 4,465.38 = 1,439 : x
  2. Step 2: Convert to fraction form
    2,981.24/4,465.38 = 1,439/x
  3. Step 3: Cross multiply
    2,981.24x = 4,465.38 × 1,439
  4. Step 4: Simplify right side
    2,981.24x = 6,425,681.82
  5. Step 5: Solve for x
    x = 6,425,681.82/2,981.24
  6. Step 6: Final answer
    x = 2,155.37

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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.