Home / 2,924.24-4,387-1,280.24

Finding the Fourth Proportional to 2,924.24, 4,387 and 1,280.24

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Solution

The fourth proportional to 2,924.24, 4,387 and 1,280.24 is: 1,920.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,924.24 : 4,387 = 1,280.24 : x
  2. Step 2: Convert to fraction form
    2,924.24/4,387 = 1,280.24/x
  3. Step 3: Cross multiply
    2,924.24x = 4,387 × 1,280.24
  4. Step 4: Simplify right side
    2,924.24x = 5,616,412.88
  5. Step 5: Solve for x
    x = 5,616,412.88/2,924.24
  6. Step 6: Final answer
    x = 1,920.64

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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.