Home / 7,239.36-9,991.39-4,587.02

Finding the Fourth Proportional to 7,239.36, 9,991.39 and 4,587.02

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Solution

The fourth proportional to 7,239.36, 9,991.39 and 4,587.02 is: 6,330.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,239.36 : 9,991.39 = 4,587.02 : x
  2. Step 2: Convert to fraction form
    7,239.36/9,991.39 = 4,587.02/x
  3. Step 3: Cross multiply
    7,239.36x = 9,991.39 × 4,587.02
  4. Step 4: Simplify right side
    7,239.36x = 45,830,655.80
  5. Step 5: Solve for x
    x = 45,830,655.80/7,239.36
  6. Step 6: Final answer
    x = 6,330.76

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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.