Home / 1,531.63-2,297.58-1,125.82

Finding the Fourth Proportional to 1,531.63, 2,297.58 and 1,125.82

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Solution

The fourth proportional to 1,531.63, 2,297.58 and 1,125.82 is: 1,688.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531.63 : 2,297.58 = 1,125.82 : x
  2. Step 2: Convert to fraction form
    1,531.63/2,297.58 = 1,125.82/x
  3. Step 3: Cross multiply
    1,531.63x = 2,297.58 × 1,125.82
  4. Step 4: Simplify right side
    1,531.63x = 2,586,661.52
  5. Step 5: Solve for x
    x = 2,586,661.52/1,531.63
  6. Step 6: Final answer
    x = 1,688.83

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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.