Home / 4,915.18-6,781.88-2,925.35

Finding the Fourth Proportional to 4,915.18, 6,781.88 and 2,925.35

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Solution

The fourth proportional to 4,915.18, 6,781.88 and 2,925.35 is: 4,036.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,915.18 : 6,781.88 = 2,925.35 : x
  2. Step 2: Convert to fraction form
    4,915.18/6,781.88 = 2,925.35/x
  3. Step 3: Cross multiply
    4,915.18x = 6,781.88 × 2,925.35
  4. Step 4: Simplify right side
    4,915.18x = 19,839,338.75
  5. Step 5: Solve for x
    x = 19,839,338.75/4,915.18
  6. Step 6: Final answer
    x = 4,036.34

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1.5x scale

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.