Home / 5,276.64-7,915.40-1,578.60

Finding the Fourth Proportional to 5,276.64, 7,915.40 and 1,578.60

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Solution

The fourth proportional to 5,276.64, 7,915.40 and 1,578.60 is: 2,368.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,276.64 : 7,915.40 = 1,578.60 : x
  2. Step 2: Convert to fraction form
    5,276.64/7,915.40 = 1,578.60/x
  3. Step 3: Cross multiply
    5,276.64x = 7,915.40 × 1,578.60
  4. Step 4: Simplify right side
    5,276.64x = 12,495,250.44
  5. Step 5: Solve for x
    x = 12,495,250.44/5,276.64
  6. Step 6: Final answer
    x = 2,368.03

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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.