Home / 1,894.08-2,611.68-1,543.68

Finding the Fourth Proportional to 1,894.08, 2,611.68 and 1,543.68

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Solution

The fourth proportional to 1,894.08, 2,611.68 and 1,543.68 is: 2,128.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,894.08 : 2,611.68 = 1,543.68 : x
  2. Step 2: Convert to fraction form
    1,894.08/2,611.68 = 1,543.68/x
  3. Step 3: Cross multiply
    1,894.08x = 2,611.68 × 1,543.68
  4. Step 4: Simplify right side
    1,894.08x = 4,031,598.18
  5. Step 5: Solve for x
    x = 4,031,598.18/1,894.08
  6. Step 6: Final answer
    x = 2,128.53

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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.