Home / 1,531.51-2,302.39-1,226.70

Finding the Fourth Proportional to 1,531.51, 2,302.39 and 1,226.70

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Solution

The fourth proportional to 1,531.51, 2,302.39 and 1,226.70 is: 1,844.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531.51 : 2,302.39 = 1,226.70 : x
  2. Step 2: Convert to fraction form
    1,531.51/2,302.39 = 1,226.70/x
  3. Step 3: Cross multiply
    1,531.51x = 2,302.39 × 1,226.70
  4. Step 4: Simplify right side
    1,531.51x = 2,824,341.81
  5. Step 5: Solve for x
    x = 2,824,341.81/1,531.51
  6. Step 6: Final answer
    x = 1,844.15

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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.