Home / 7,344.83-10,135.56-3,987.51

Finding the Fourth Proportional to 7,344.83, 10,135.56 and 3,987.51

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Solution

The fourth proportional to 7,344.83, 10,135.56 and 3,987.51 is: 5,502.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,344.83 : 10,135.56 = 3,987.51 : x
  2. Step 2: Convert to fraction form
    7,344.83/10,135.56 = 3,987.51/x
  3. Step 3: Cross multiply
    7,344.83x = 10,135.56 × 3,987.51
  4. Step 4: Simplify right side
    7,344.83x = 40,415,646.86
  5. Step 5: Solve for x
    x = 40,415,646.86/7,344.83
  6. Step 6: Final answer
    x = 5,502.60

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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.