Home / 2,915.86-4,374.36-1,066.80

Finding the Fourth Proportional to 2,915.86, 4,374.36 and 1,066.80

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Solution

The fourth proportional to 2,915.86, 4,374.36 and 1,066.80 is: 1,600.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.86 : 4,374.36 = 1,066.80 : x
  2. Step 2: Convert to fraction form
    2,915.86/4,374.36 = 1,066.80/x
  3. Step 3: Cross multiply
    2,915.86x = 4,374.36 × 1,066.80
  4. Step 4: Simplify right side
    2,915.86x = 4,666,567.25
  5. Step 5: Solve for x
    x = 4,666,567.25/2,915.86
  6. Step 6: Final answer
    x = 1,600.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.