Home / 5,388.69-7,437.02-2,999.55

Finding the Fourth Proportional to 5,388.69, 7,437.02 and 2,999.55

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Solution

The fourth proportional to 5,388.69, 7,437.02 and 2,999.55 is: 4,139.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.69 : 7,437.02 = 2,999.55 : x
  2. Step 2: Convert to fraction form
    5,388.69/7,437.02 = 2,999.55/x
  3. Step 3: Cross multiply
    5,388.69x = 7,437.02 × 2,999.55
  4. Step 4: Simplify right side
    5,388.69x = 22,307,698.34
  5. Step 5: Solve for x
    x = 22,307,698.34/5,388.69
  6. Step 6: Final answer
    x = 4,139.73

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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.