Home / 3,915.83-5,874.66-1,283.47

Finding the Fourth Proportional to 3,915.83, 5,874.66 and 1,283.47

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Solution

The fourth proportional to 3,915.83, 5,874.66 and 1,283.47 is: 1,925.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,915.83 : 5,874.66 = 1,283.47 : x
  2. Step 2: Convert to fraction form
    3,915.83/5,874.66 = 1,283.47/x
  3. Step 3: Cross multiply
    3,915.83x = 5,874.66 × 1,283.47
  4. Step 4: Simplify right side
    3,915.83x = 7,539,935.18
  5. Step 5: Solve for x
    x = 7,539,935.18/3,915.83
  6. Step 6: Final answer
    x = 1,925.50

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1.5x scale

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.