Home / 7,931.19-11,880.60-3,758.55

Finding the Fourth Proportional to 7,931.19, 11,880.60 and 3,758.55

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Solution

The fourth proportional to 7,931.19, 11,880.60 and 3,758.55 is: 5,630.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,931.19 : 11,880.60 = 3,758.55 : x
  2. Step 2: Convert to fraction form
    7,931.19/11,880.60 = 3,758.55/x
  3. Step 3: Cross multiply
    7,931.19x = 11,880.60 × 3,758.55
  4. Step 4: Simplify right side
    7,931.19x = 44,653,829.13
  5. Step 5: Solve for x
    x = 44,653,829.13/7,931.19
  6. Step 6: Final answer
    x = 5,630.16

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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.