Home / 1,915.98-2,646.18-1,806.63

Finding the Fourth Proportional to 1,915.98, 2,646.18 and 1,806.63

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Solution

The fourth proportional to 1,915.98, 2,646.18 and 1,806.63 is: 2,495.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915.98 : 2,646.18 = 1,806.63 : x
  2. Step 2: Convert to fraction form
    1,915.98/2,646.18 = 1,806.63/x
  3. Step 3: Cross multiply
    1,915.98x = 2,646.18 × 1,806.63
  4. Step 4: Simplify right side
    1,915.98x = 4,780,668.17
  5. Step 5: Solve for x
    x = 4,780,668.17/1,915.98
  6. Step 6: Final answer
    x = 2,495.16

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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.