Home / 1,679.16-2,314.80-1,180.32

Finding the Fourth Proportional to 1,679.16, 2,314.80 and 1,180.32

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Solution

The fourth proportional to 1,679.16, 2,314.80 and 1,180.32 is: 1,627.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,679.16 : 2,314.80 = 1,180.32 : x
  2. Step 2: Convert to fraction form
    1,679.16/2,314.80 = 1,180.32/x
  3. Step 3: Cross multiply
    1,679.16x = 2,314.80 × 1,180.32
  4. Step 4: Simplify right side
    1,679.16x = 2,732,204.74
  5. Step 5: Solve for x
    x = 2,732,204.74/1,679.16
  6. Step 6: Final answer
    x = 1,627.13

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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.