Home / 2,915.04-4,020.61-1,851.89

Finding the Fourth Proportional to 2,915.04, 4,020.61 and 1,851.89

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Solution

The fourth proportional to 2,915.04, 4,020.61 and 1,851.89 is: 2,554.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.04 : 4,020.61 = 1,851.89 : x
  2. Step 2: Convert to fraction form
    2,915.04/4,020.61 = 1,851.89/x
  3. Step 3: Cross multiply
    2,915.04x = 4,020.61 × 1,851.89
  4. Step 4: Simplify right side
    2,915.04x = 7,445,727.45
  5. Step 5: Solve for x
    x = 7,445,727.45/2,915.04
  6. Step 6: Final answer
    x = 2,554.25

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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.