Home / 5,287.60-7,931.16-2,512.24

Finding the Fourth Proportional to 5,287.60, 7,931.16 and 2,512.24

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Solution

The fourth proportional to 5,287.60, 7,931.16 and 2,512.24 is: 3,768.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,287.60 : 7,931.16 = 2,512.24 : x
  2. Step 2: Convert to fraction form
    5,287.60/7,931.16 = 2,512.24/x
  3. Step 3: Cross multiply
    5,287.60x = 7,931.16 × 2,512.24
  4. Step 4: Simplify right side
    5,287.60x = 19,924,977.40
  5. Step 5: Solve for x
    x = 19,924,977.40/5,287.60
  6. Step 6: Final answer
    x = 3,768.25

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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.