Home / 1,543.24-2,127.99-1,334.08

Finding the Fourth Proportional to 1,543.24, 2,127.99 and 1,334.08

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Solution

The fourth proportional to 1,543.24, 2,127.99 and 1,334.08 is: 1,839.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543.24 : 2,127.99 = 1,334.08 : x
  2. Step 2: Convert to fraction form
    1,543.24/2,127.99 = 1,334.08/x
  3. Step 3: Cross multiply
    1,543.24x = 2,127.99 × 1,334.08
  4. Step 4: Simplify right side
    1,543.24x = 2,838,908.90
  5. Step 5: Solve for x
    x = 2,838,908.90/1,543.24
  6. Step 6: Final answer
    x = 1,839.58

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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.