Home / 5,276.15-7,915.81-1,578.50

Finding the Fourth Proportional to 5,276.15, 7,915.81 and 1,578.50

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Solution

The fourth proportional to 5,276.15, 7,915.81 and 1,578.50 is: 2,368.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,276.15 : 7,915.81 = 1,578.50 : x
  2. Step 2: Convert to fraction form
    5,276.15/7,915.81 = 1,578.50/x
  3. Step 3: Cross multiply
    5,276.15x = 7,915.81 × 1,578.50
  4. Step 4: Simplify right side
    5,276.15x = 12,495,106.09
  5. Step 5: Solve for x
    x = 12,495,106.09/5,276.15
  6. Step 6: Final answer
    x = 2,368.22

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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.