Home / 5,980-8,259.86-4,219.47

Finding the Fourth Proportional to 5,980, 8,259.86 and 4,219.47

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Solution

The fourth proportional to 5,980, 8,259.86 and 4,219.47 is: 5,828.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,980 : 8,259.86 = 4,219.47 : x
  2. Step 2: Convert to fraction form
    5,980/8,259.86 = 4,219.47/x
  3. Step 3: Cross multiply
    5,980x = 8,259.86 × 4,219.47
  4. Step 4: Simplify right side
    5,980x = 34,852,231.47
  5. Step 5: Solve for x
    x = 34,852,231.47/5,980
  6. Step 6: Final answer
    x = 5,828.13

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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.