Home / 1,915.58-2,644.71-1,325.90

Finding the Fourth Proportional to 1,915.58, 2,644.71 and 1,325.90

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Solution

The fourth proportional to 1,915.58, 2,644.71 and 1,325.90 is: 1,830.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915.58 : 2,644.71 = 1,325.90 : x
  2. Step 2: Convert to fraction form
    1,915.58/2,644.71 = 1,325.90/x
  3. Step 3: Cross multiply
    1,915.58x = 2,644.71 × 1,325.90
  4. Step 4: Simplify right side
    1,915.58x = 3,506,620.99
  5. Step 5: Solve for x
    x = 3,506,620.99/1,915.58
  6. Step 6: Final answer
    x = 1,830.58

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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.