Home / 1,898.34-2,621.26-1,307.85

Finding the Fourth Proportional to 1,898.34, 2,621.26 and 1,307.85

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Solution

The fourth proportional to 1,898.34, 2,621.26 and 1,307.85 is: 1,805.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,898.34 : 2,621.26 = 1,307.85 : x
  2. Step 2: Convert to fraction form
    1,898.34/2,621.26 = 1,307.85/x
  3. Step 3: Cross multiply
    1,898.34x = 2,621.26 × 1,307.85
  4. Step 4: Simplify right side
    1,898.34x = 3,428,214.89
  5. Step 5: Solve for x
    x = 3,428,214.89/1,898.34
  6. Step 6: Final answer
    x = 1,805.90

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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.