Home / 1,549.73-2,136.88-1,129.34

Finding the Fourth Proportional to 1,549.73, 2,136.88 and 1,129.34

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Solution

The fourth proportional to 1,549.73, 2,136.88 and 1,129.34 is: 1,557.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,549.73 : 2,136.88 = 1,129.34 : x
  2. Step 2: Convert to fraction form
    1,549.73/2,136.88 = 1,129.34/x
  3. Step 3: Cross multiply
    1,549.73x = 2,136.88 × 1,129.34
  4. Step 4: Simplify right side
    1,549.73x = 2,413,270.81
  5. Step 5: Solve for x
    x = 2,413,270.81/1,549.73
  6. Step 6: Final answer
    x = 1,557.22

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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.