Home / 3,088.06-4,261.56-1,690.81

Finding the Fourth Proportional to 3,088.06, 4,261.56 and 1,690.81

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Solution

The fourth proportional to 3,088.06, 4,261.56 and 1,690.81 is: 2,333.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,088.06 : 4,261.56 = 1,690.81 : x
  2. Step 2: Convert to fraction form
    3,088.06/4,261.56 = 1,690.81/x
  3. Step 3: Cross multiply
    3,088.06x = 4,261.56 × 1,690.81
  4. Step 4: Simplify right side
    3,088.06x = 7,205,488.26
  5. Step 5: Solve for x
    x = 7,205,488.26/3,088.06
  6. Step 6: Final answer
    x = 2,333.34

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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.