Home / 1,897.35-2,616.99-1,543.29

Finding the Fourth Proportional to 1,897.35, 2,616.99 and 1,543.29

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Solution

The fourth proportional to 1,897.35, 2,616.99 and 1,543.29 is: 2,128.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,897.35 : 2,616.99 = 1,543.29 : x
  2. Step 2: Convert to fraction form
    1,897.35/2,616.99 = 1,543.29/x
  3. Step 3: Cross multiply
    1,897.35x = 2,616.99 × 1,543.29
  4. Step 4: Simplify right side
    1,897.35x = 4,038,774.50
  5. Step 5: Solve for x
    x = 4,038,774.50/1,897.35
  6. Step 6: Final answer
    x = 2,128.64

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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.