Home / 1,549.76-2,136.16-1,083.20

Finding the Fourth Proportional to 1,549.76, 2,136.16 and 1,083.20

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Solution

The fourth proportional to 1,549.76, 2,136.16 and 1,083.20 is: 1,493.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,549.76 : 2,136.16 = 1,083.20 : x
  2. Step 2: Convert to fraction form
    1,549.76/2,136.16 = 1,083.20/x
  3. Step 3: Cross multiply
    1,549.76x = 2,136.16 × 1,083.20
  4. Step 4: Simplify right side
    1,549.76x = 2,313,888.51
  5. Step 5: Solve for x
    x = 2,313,888.51/1,549.76
  6. Step 6: Final answer
    x = 1,493.06

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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.