Home / 5,400.12-7,448.93-3,983.35

Finding the Fourth Proportional to 5,400.12, 7,448.93 and 3,983.35

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Solution

The fourth proportional to 5,400.12, 7,448.93 and 3,983.35 is: 5,494.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,400.12 : 7,448.93 = 3,983.35 : x
  2. Step 2: Convert to fraction form
    5,400.12/7,448.93 = 3,983.35/x
  3. Step 3: Cross multiply
    5,400.12x = 7,448.93 × 3,983.35
  4. Step 4: Simplify right side
    5,400.12x = 29,671,695.32
  5. Step 5: Solve for x
    x = 29,671,695.32/5,400.12
  6. Step 6: Final answer
    x = 5,494.64

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1.5x scale

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.