Home / 1,543.24-2,124.59-1,336.08

Finding the Fourth Proportional to 1,543.24, 2,124.59 and 1,336.08

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Solution

The fourth proportional to 1,543.24, 2,124.59 and 1,336.08 is: 1,839.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543.24 : 2,124.59 = 1,336.08 : x
  2. Step 2: Convert to fraction form
    1,543.24/2,124.59 = 1,336.08/x
  3. Step 3: Cross multiply
    1,543.24x = 2,124.59 × 1,336.08
  4. Step 4: Simplify right side
    1,543.24x = 2,838,622.21
  5. Step 5: Solve for x
    x = 2,838,622.21/1,543.24
  6. Step 6: Final answer
    x = 1,839.39

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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.