Home / 1,543.63-2,315.39-1,237.42

Finding the Fourth Proportional to 1,543.63, 2,315.39 and 1,237.42

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Solution

The fourth proportional to 1,543.63, 2,315.39 and 1,237.42 is: 1,856.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543.63 : 2,315.39 = 1,237.42 : x
  2. Step 2: Convert to fraction form
    1,543.63/2,315.39 = 1,237.42/x
  3. Step 3: Cross multiply
    1,543.63x = 2,315.39 × 1,237.42
  4. Step 4: Simplify right side
    1,543.63x = 2,865,109.89
  5. Step 5: Solve for x
    x = 2,865,109.89/1,543.63
  6. Step 6: Final answer
    x = 1,856.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.