Home / 1,549.12-2,136.36-1,437.36

Finding the Fourth Proportional to 1,549.12, 2,136.36 and 1,437.36

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Solution

The fourth proportional to 1,549.12, 2,136.36 and 1,437.36 is: 1,982.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,549.12 : 2,136.36 = 1,437.36 : x
  2. Step 2: Convert to fraction form
    1,549.12/2,136.36 = 1,437.36/x
  3. Step 3: Cross multiply
    1,549.12x = 2,136.36 × 1,437.36
  4. Step 4: Simplify right side
    1,549.12x = 3,070,718.41
  5. Step 5: Solve for x
    x = 3,070,718.41/1,549.12
  6. Step 6: Final answer
    x = 1,982.23

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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.