Home / 5,388.47-8,083.13-1,439.74

Finding the Fourth Proportional to 5,388.47, 8,083.13 and 1,439.74

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Solution

The fourth proportional to 5,388.47, 8,083.13 and 1,439.74 is: 2,159.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.47 : 8,083.13 = 1,439.74 : x
  2. Step 2: Convert to fraction form
    5,388.47/8,083.13 = 1,439.74/x
  3. Step 3: Cross multiply
    5,388.47x = 8,083.13 × 1,439.74
  4. Step 4: Simplify right side
    5,388.47x = 11,637,605.59
  5. Step 5: Solve for x
    x = 11,637,605.59/5,388.47
  6. Step 6: Final answer
    x = 2,159.72

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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.