Home / 3,159.48-4,362.12-2,164.44

Finding the Fourth Proportional to 3,159.48, 4,362.12 and 2,164.44

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Solution

The fourth proportional to 3,159.48, 4,362.12 and 2,164.44 is: 2,988.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,159.48 : 4,362.12 = 2,164.44 : x
  2. Step 2: Convert to fraction form
    3,159.48/4,362.12 = 2,164.44/x
  3. Step 3: Cross multiply
    3,159.48x = 4,362.12 × 2,164.44
  4. Step 4: Simplify right side
    3,159.48x = 9,441,547.01
  5. Step 5: Solve for x
    x = 9,441,547.01/3,159.48
  6. Step 6: Final answer
    x = 2,988.32

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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.