Home / 1,530.74-2,111.49-1,236.41

Finding the Fourth Proportional to 1,530.74, 2,111.49 and 1,236.41

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Solution

The fourth proportional to 1,530.74, 2,111.49 and 1,236.41 is: 1,705.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,530.74 : 2,111.49 = 1,236.41 : x
  2. Step 2: Convert to fraction form
    1,530.74/2,111.49 = 1,236.41/x
  3. Step 3: Cross multiply
    1,530.74x = 2,111.49 × 1,236.41
  4. Step 4: Simplify right side
    1,530.74x = 2,610,656.79
  5. Step 5: Solve for x
    x = 2,610,656.79/1,530.74
  6. Step 6: Final answer
    x = 1,705.48

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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.