Home / 1,442.16-2,159.12-1,327.34

Finding the Fourth Proportional to 1,442.16, 2,159.12 and 1,327.34

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Solution

The fourth proportional to 1,442.16, 2,159.12 and 1,327.34 is: 1,987.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442.16 : 2,159.12 = 1,327.34 : x
  2. Step 2: Convert to fraction form
    1,442.16/2,159.12 = 1,327.34/x
  3. Step 3: Cross multiply
    1,442.16x = 2,159.12 × 1,327.34
  4. Step 4: Simplify right side
    1,442.16x = 2,865,895.06
  5. Step 5: Solve for x
    x = 2,865,895.06/1,442.16
  6. Step 6: Final answer
    x = 1,987.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.